diff --git a/disabled/invite_peerout_emergency/0003_test.yml.tt2 b/disabled/invite_peerout_emergency/0003_test.yml.tt2
index d191ca0f..b7fb92fa 100644
--- a/disabled/invite_peerout_emergency/0003_test.yml.tt2
+++ b/disabled/invite_peerout_emergency/0003_test.yml.tt2
@@ -91,10 +91,13 @@ flow:
   - end|ROUTE_ADD_CALLINFO:
   - end|BRANCH_ROUTE_SBC:
   - exit|ROUTE_OUTBOUND:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/disabled/invite_peerout_emergency/0008_test.yml.tt2 b/disabled/invite_peerout_emergency/0008_test.yml.tt2
index 34c96020..7ae93232 100644
--- a/disabled/invite_peerout_emergency/0008_test.yml.tt2
+++ b/disabled/invite_peerout_emergency/0008_test.yml.tt2
@@ -12,6 +12,7 @@ flow:
   - end|ROUTE_STOP_RTPPROXY:
   - start|ROUTE_OUTBOUND:
   - exit|ROUTE_OUTBOUND:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/disabled/invite_speeddial/0009_test.yml.tt2 b/disabled/invite_speeddial/0009_test.yml.tt2
index fd96f31e..0b969d9e 100644
--- a/disabled/invite_speeddial/0009_test.yml.tt2
+++ b/disabled/invite_speeddial/0009_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/disabled/invite_speeddial/0010_test.yml.tt2 b/disabled/invite_speeddial/0010_test.yml.tt2
index 3d115c60..796dde1e 100644
--- a/disabled/invite_speeddial/0010_test.yml.tt2
+++ b/disabled/invite_speeddial/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
diff --git a/disabled/invite_speeddial/0013_test.yml.tt2 b/disabled/invite_speeddial/0013_test.yml.tt2
index a0510189..e9fd82a6 100644
--- a/disabled/invite_speeddial/0013_test.yml.tt2
+++ b/disabled/invite_speeddial/0013_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/disabled/invite_speeddial/0018_test.yml.tt2 b/disabled/invite_speeddial/0018_test.yml.tt2
index cd98a8f7..03780443 100644
--- a/disabled/invite_speeddial/0018_test.yml.tt2
+++ b/disabled/invite_speeddial/0018_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/disabled/invite_speeddial/0019_test.yml.tt2 b/disabled/invite_speeddial/0019_test.yml.tt2
index 7bfbcd24..0fc3deda 100644
--- a/disabled/invite_speeddial/0019_test.yml.tt2
+++ b/disabled/invite_speeddial/0019_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
diff --git a/disabled/invite_speeddial/0022_test.yml.tt2 b/disabled/invite_speeddial/0022_test.yml.tt2
index 040c93c9..16659bb1 100644
--- a/disabled/invite_speeddial/0022_test.yml.tt2
+++ b/disabled/invite_speeddial/0022_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - exit|REPLY_ROUTE_NAT:
 sip_in:
diff --git a/scenarios/incoming_foreign_dom/0005_test.yml.tt2 b/scenarios/incoming_foreign_dom/0005_test.yml.tt2
index 509e71ab..7788cc0c 100644
--- a/scenarios/incoming_foreign_dom/0005_test.yml.tt2
+++ b/scenarios/incoming_foreign_dom/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -20,6 +21,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_foreign_dom/0006_test.yml.tt2 b/scenarios/incoming_foreign_dom/0006_test.yml.tt2
index 8dfd54c9..1bd36f60 100644
--- a/scenarios/incoming_foreign_dom/0006_test.yml.tt2
+++ b/scenarios/incoming_foreign_dom/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_foreign_dom/0009_test.yml.tt2 b/scenarios/incoming_foreign_dom/0009_test.yml.tt2
index a7dce0e7..ac7f5723 100644
--- a/scenarios/incoming_foreign_dom/0009_test.yml.tt2
+++ b/scenarios/incoming_foreign_dom/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_hih/0010_test.yml.tt2 b/scenarios/incoming_hih/0010_test.yml.tt2
index 816452a6..93fe38f7 100644
--- a/scenarios/incoming_hih/0010_test.yml.tt2
+++ b/scenarios/incoming_hih/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_CF_LOOP:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
diff --git a/scenarios/incoming_hih/0015_test.yml.tt2 b/scenarios/incoming_hih/0015_test.yml.tt2
index f76b6ca5..603404ed 100644
--- a/scenarios/incoming_hih/0015_test.yml.tt2
+++ b/scenarios/incoming_hih/0015_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_hih/0016_test.yml.tt2 b/scenarios/incoming_hih/0016_test.yml.tt2
index 02e43c2a..7bdec963 100644
--- a/scenarios/incoming_hih/0016_test.yml.tt2
+++ b/scenarios/incoming_hih/0016_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_peer/0005_test.yml.tt2 b/scenarios/incoming_peer/0005_test.yml.tt2
index 421b7053..65844a9f 100644
--- a/scenarios/incoming_peer/0005_test.yml.tt2
+++ b/scenarios/incoming_peer/0005_test.yml.tt2
@@ -1,10 +1,12 @@
 # INVITE_OFFLINE scenario
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_peer/0006_test.yml.tt2 b/scenarios/incoming_peer/0006_test.yml.tt2
index 64a375e1..b1c0e534 100644
--- a/scenarios/incoming_peer/0006_test.yml.tt2
+++ b/scenarios/incoming_peer/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/incoming_peer/0009_test.yml.tt2 b/scenarios/incoming_peer/0009_test.yml.tt2
index 95f1ab13..f464ac32 100644
--- a/scenarios/incoming_peer/0009_test.yml.tt2
+++ b/scenarios/incoming_peer/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite/0007_test.yml.tt2 b/scenarios/invite/0007_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite/0007_test.yml.tt2
+++ b/scenarios/invite/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite/0008_test.yml.tt2 b/scenarios/invite/0008_test.yml.tt2
index 55ad17d5..5ac367a9 100644
--- a/scenarios/invite/0008_test.yml.tt2
+++ b/scenarios/invite/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite/0011_test.yml.tt2 b/scenarios/invite/0011_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite/0011_test.yml.tt2
+++ b/scenarios/invite/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match/0007_test.yml.tt2 b/scenarios/invite_allowedcli_match/0007_test.yml.tt2
index 6311ea99..9d20771d 100644
--- a/scenarios/invite_allowedcli_match/0007_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match/0008_test.yml.tt2 b/scenarios/invite_allowedcli_match/0008_test.yml.tt2
index 86c3f8ef..3d3f3e72 100644
--- a/scenarios/invite_allowedcli_match/0008_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match/0011_test.yml.tt2 b/scenarios/invite_allowedcli_match/0011_test.yml.tt2
index 84ca9a59..8d9e2fe3 100644
--- a/scenarios/invite_allowedcli_match/0011_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match_alias/0007_test.yml.tt2 b/scenarios/invite_allowedcli_match_alias/0007_test.yml.tt2
index dfe6b3d7..d06eb874 100644
--- a/scenarios/invite_allowedcli_match_alias/0007_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match_alias/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match_alias/0008_test.yml.tt2 b/scenarios/invite_allowedcli_match_alias/0008_test.yml.tt2
index 17d1c6f8..aea314c4 100644
--- a/scenarios/invite_allowedcli_match_alias/0008_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match_alias/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_match_alias/0011_test.yml.tt2 b/scenarios/invite_allowedcli_match_alias/0011_test.yml.tt2
index 929a9ca8..9a1fa4ee 100644
--- a/scenarios/invite_allowedcli_match_alias/0011_test.yml.tt2
+++ b/scenarios/invite_allowedcli_match_alias/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_nonmatch/0007_test.yml.tt2 b/scenarios/invite_allowedcli_nonmatch/0007_test.yml.tt2
index 6f6fddbf..5883e167 100644
--- a/scenarios/invite_allowedcli_nonmatch/0007_test.yml.tt2
+++ b/scenarios/invite_allowedcli_nonmatch/0007_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -20,6 +21,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_nonmatch/0008_test.yml.tt2 b/scenarios/invite_allowedcli_nonmatch/0008_test.yml.tt2
index 651009af..42537f83 100644
--- a/scenarios/invite_allowedcli_nonmatch/0008_test.yml.tt2
+++ b/scenarios/invite_allowedcli_nonmatch/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowedcli_nonmatch/0011_test.yml.tt2 b/scenarios/invite_allowedcli_nonmatch/0011_test.yml.tt2
index d3b0eaa1..75c92fa2 100644
--- a/scenarios/invite_allowedcli_nonmatch/0011_test.yml.tt2
+++ b/scenarios/invite_allowedcli_nonmatch/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowip_soundset/0004_test.yml.tt2 b/scenarios/invite_allowip_soundset/0004_test.yml.tt2
index 62ffc874..c4c6ff5c 100644
--- a/scenarios/invite_allowip_soundset/0004_test.yml.tt2
+++ b/scenarios/invite_allowip_soundset/0004_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_allowip_soundset/0005_test.yml.tt2 b/scenarios/invite_allowip_soundset/0005_test.yml.tt2
index c2eaa36c..d4433177 100644
--- a/scenarios/invite_allowip_soundset/0005_test.yml.tt2
+++ b/scenarios/invite_allowip_soundset/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_anonymous/0007_test.yml.tt2 b/scenarios/invite_anonymous/0007_test.yml.tt2
index 9cb7a947..60f96d7e 100644
--- a/scenarios/invite_anonymous/0007_test.yml.tt2
+++ b/scenarios/invite_anonymous/0007_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -20,6 +21,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_anonymous/0008_test.yml.tt2 b/scenarios/invite_anonymous/0008_test.yml.tt2
index 348c28ab..f9caeca0 100644
--- a/scenarios/invite_anonymous/0008_test.yml.tt2
+++ b/scenarios/invite_anonymous/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_anonymous/0011_test.yml.tt2 b/scenarios/invite_anonymous/0011_test.yml.tt2
index 190b7a9c..a2da000a 100644
--- a/scenarios/invite_anonymous/0011_test.yml.tt2
+++ b/scenarios/invite_anonymous/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_blockout_pinoverride/0007_test.yml.tt2 b/scenarios/invite_blockout_pinoverride/0007_test.yml.tt2
index 9cb7a947..60f96d7e 100644
--- a/scenarios/invite_blockout_pinoverride/0007_test.yml.tt2
+++ b/scenarios/invite_blockout_pinoverride/0007_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -20,6 +21,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_blockout_pinoverride/0008_test.yml.tt2 b/scenarios/invite_blockout_pinoverride/0008_test.yml.tt2
index 61da5006..5843d60e 100644
--- a/scenarios/invite_blockout_pinoverride/0008_test.yml.tt2
+++ b/scenarios/invite_blockout_pinoverride/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_blockout_pinoverride/0011_test.yml.tt2 b/scenarios/invite_blockout_pinoverride/0011_test.yml.tt2
index fb3d7180..62ce803b 100644
--- a/scenarios/invite_blockout_pinoverride/0011_test.yml.tt2
+++ b/scenarios/invite_blockout_pinoverride/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0021_test.yml.tt2 b/scenarios/invite_callforward/0021_test.yml.tt2
index 729abe39..143a2603 100644
--- a/scenarios/invite_callforward/0021_test.yml.tt2
+++ b/scenarios/invite_callforward/0021_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0022_test.yml.tt2 b/scenarios/invite_callforward/0022_test.yml.tt2
index 2661949f..af453f8b 100644
--- a/scenarios/invite_callforward/0022_test.yml.tt2
+++ b/scenarios/invite_callforward/0022_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0031_test.yml.tt2 b/scenarios/invite_callforward/0031_test.yml.tt2
index e568e328..a5801841 100644
--- a/scenarios/invite_callforward/0031_test.yml.tt2
+++ b/scenarios/invite_callforward/0031_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0032_test.yml.tt2 b/scenarios/invite_callforward/0032_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_callforward/0032_test.yml.tt2
+++ b/scenarios/invite_callforward/0032_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0033_test.yml.tt2 b/scenarios/invite_callforward/0033_test.yml.tt2
index e8667f5d..8ae2f87e 100644
--- a/scenarios/invite_callforward/0033_test.yml.tt2
+++ b/scenarios/invite_callforward/0033_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0034_test.yml.tt2 b/scenarios/invite_callforward/0034_test.yml.tt2
index 1587323e..60c95eec 100644
--- a/scenarios/invite_callforward/0034_test.yml.tt2
+++ b/scenarios/invite_callforward/0034_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0039_test.yml.tt2 b/scenarios/invite_callforward/0039_test.yml.tt2
index 1a699ce2..836506ff 100644
--- a/scenarios/invite_callforward/0039_test.yml.tt2
+++ b/scenarios/invite_callforward/0039_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_callforward/0040_test.yml.tt2 b/scenarios/invite_callforward/0040_test.yml.tt2
index c396d205..34c7e69c 100644
--- a/scenarios/invite_callforward/0040_test.yml.tt2
+++ b/scenarios/invite_callforward/0040_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max/0017_test.yml.tt2 b/scenarios/invite_concurrent_max/0017_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_concurrent_max/0017_test.yml.tt2
+++ b/scenarios/invite_concurrent_max/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out/0005_test.yml.tt2 b/scenarios/invite_concurrent_max_out/0005_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_concurrent_max_out/0005_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out/0006_test.yml.tt2 b/scenarios/invite_concurrent_max_out/0006_test.yml.tt2
index 9abc8a5b..8bbaf3dd 100644
--- a/scenarios/invite_concurrent_max_out/0006_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out/0010_test.yml.tt2 b/scenarios/invite_concurrent_max_out/0010_test.yml.tt2
index 5c19de63..9104932c 100644
--- a/scenarios/invite_concurrent_max_out/0010_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out/0017_test.yml.tt2 b/scenarios/invite_concurrent_max_out/0017_test.yml.tt2
index 3a2c4f1d..b9ad32b9 100644
--- a/scenarios/invite_concurrent_max_out/0017_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out_per_account/0005_test.yml.tt2 b/scenarios/invite_concurrent_max_out_per_account/0005_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_concurrent_max_out_per_account/0005_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out_per_account/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out_per_account/0006_test.yml.tt2 b/scenarios/invite_concurrent_max_out_per_account/0006_test.yml.tt2
index 9abc8a5b..8bbaf3dd 100644
--- a/scenarios/invite_concurrent_max_out_per_account/0006_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out_per_account/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out_per_account/0010_test.yml.tt2 b/scenarios/invite_concurrent_max_out_per_account/0010_test.yml.tt2
index 5c19de63..9104932c 100644
--- a/scenarios/invite_concurrent_max_out_per_account/0010_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out_per_account/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_out_per_account/0017_test.yml.tt2 b/scenarios/invite_concurrent_max_out_per_account/0017_test.yml.tt2
index 3a2c4f1d..b9ad32b9 100644
--- a/scenarios/invite_concurrent_max_out_per_account/0017_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_out_per_account/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_per_account/0009_test.yml.tt2 b/scenarios/invite_concurrent_max_per_account/0009_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_concurrent_max_per_account/0009_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_per_account/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_per_account/0010_test.yml.tt2 b/scenarios/invite_concurrent_max_per_account/0010_test.yml.tt2
index 61866471..2c5e1910 100644
--- a/scenarios/invite_concurrent_max_per_account/0010_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_per_account/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_concurrent_max_per_account/0016_test.yml.tt2 b/scenarios/invite_concurrent_max_per_account/0016_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_concurrent_max_per_account/0016_test.yml.tt2
+++ b/scenarios/invite_concurrent_max_per_account/0016_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_conference_update/0015_test.yml.tt2 b/scenarios/invite_conference_update/0015_test.yml.tt2
index 7047897f..801ec81f 100644
--- a/scenarios/invite_conference_update/0015_test.yml.tt2
+++ b/scenarios/invite_conference_update/0015_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_foreign_dom/0005_test.yml.tt2 b/scenarios/invite_foreign_dom/0005_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_foreign_dom/0005_test.yml.tt2
+++ b/scenarios/invite_foreign_dom/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_foreign_dom/0006_test.yml.tt2 b/scenarios/invite_foreign_dom/0006_test.yml.tt2
index 7f6b2a65..fac46e3d 100644
--- a/scenarios/invite_foreign_dom/0006_test.yml.tt2
+++ b/scenarios/invite_foreign_dom/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_foreign_dom/0009_test.yml.tt2 b/scenarios/invite_foreign_dom/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios/invite_foreign_dom/0009_test.yml.tt2
+++ b/scenarios/invite_foreign_dom/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_ignore_allowip/0007_test.yml.tt2 b/scenarios/invite_ignore_allowip/0007_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_ignore_allowip/0007_test.yml.tt2
+++ b/scenarios/invite_ignore_allowip/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_ignore_allowip/0008_test.yml.tt2 b/scenarios/invite_ignore_allowip/0008_test.yml.tt2
index 8e95a6ae..5a6388c6 100644
--- a/scenarios/invite_ignore_allowip/0008_test.yml.tt2
+++ b/scenarios/invite_ignore_allowip/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_ignore_allowip/0011_test.yml.tt2 b/scenarios/invite_ignore_allowip/0011_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_ignore_allowip/0011_test.yml.tt2
+++ b/scenarios/invite_ignore_allowip/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_lateoam/0007_test.yml.tt2 b/scenarios/invite_lateoam/0007_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_lateoam/0007_test.yml.tt2
+++ b/scenarios/invite_lateoam/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_lateoam/0008_test.yml.tt2 b/scenarios/invite_lateoam/0008_test.yml.tt2
index 55ad17d5..5ac367a9 100644
--- a/scenarios/invite_lateoam/0008_test.yml.tt2
+++ b/scenarios/invite_lateoam/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_lateoam/0011_test.yml.tt2 b/scenarios/invite_lateoam/0011_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_lateoam/0011_test.yml.tt2
+++ b/scenarios/invite_lateoam/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_no_refer/0007_test.yml.tt2 b/scenarios/invite_no_refer/0007_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_no_refer/0007_test.yml.tt2
+++ b/scenarios/invite_no_refer/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_no_refer/0008_test.yml.tt2 b/scenarios/invite_no_refer/0008_test.yml.tt2
index cde0ce2d..84b82f40 100644
--- a/scenarios/invite_no_refer/0008_test.yml.tt2
+++ b/scenarios/invite_no_refer/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_no_refer/0011_test.yml.tt2 b/scenarios/invite_no_refer/0011_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_no_refer/0011_test.yml.tt2
+++ b/scenarios/invite_no_refer/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout/0005_test.yml.tt2 b/scenarios/invite_peerout/0005_test.yml.tt2
index dded52c4..d36c897f 100644
--- a/scenarios/invite_peerout/0005_test.yml.tt2
+++ b/scenarios/invite_peerout/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout/0006_test.yml.tt2 b/scenarios/invite_peerout/0006_test.yml.tt2
index b927a13d..8cd56960 100644
--- a/scenarios/invite_peerout/0006_test.yml.tt2
+++ b/scenarios/invite_peerout/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout/0009_test.yml.tt2 b/scenarios/invite_peerout/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios/invite_peerout/0009_test.yml.tt2
+++ b/scenarios/invite_peerout/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_failover/0005_test.yml.tt2 b/scenarios/invite_peerout_failover/0005_test.yml.tt2
index e1ecedb1..18b2252f 100644
--- a/scenarios/invite_peerout_failover/0005_test.yml.tt2
+++ b/scenarios/invite_peerout_failover/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -19,6 +20,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_failover/0007_test.yml.tt2 b/scenarios/invite_peerout_failover/0007_test.yml.tt2
index dded52c4..d36c897f 100644
--- a/scenarios/invite_peerout_failover/0007_test.yml.tt2
+++ b/scenarios/invite_peerout_failover/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_failover/0008_test.yml.tt2 b/scenarios/invite_peerout_failover/0008_test.yml.tt2
index dbc0db5b..b572b37c 100644
--- a/scenarios/invite_peerout_failover/0008_test.yml.tt2
+++ b/scenarios/invite_peerout_failover/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_failover/0011_test.yml.tt2 b/scenarios/invite_peerout_failover/0011_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios/invite_peerout_failover/0011_test.yml.tt2
+++ b/scenarios/invite_peerout_failover/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_max_out/0005_test.yml.tt2 b/scenarios/invite_peerout_max_out/0005_test.yml.tt2
index dded52c4..d36c897f 100644
--- a/scenarios/invite_peerout_max_out/0005_test.yml.tt2
+++ b/scenarios/invite_peerout_max_out/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_max_out/0006_test.yml.tt2 b/scenarios/invite_peerout_max_out/0006_test.yml.tt2
index b927a13d..8cd56960 100644
--- a/scenarios/invite_peerout_max_out/0006_test.yml.tt2
+++ b/scenarios/invite_peerout_max_out/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_max_out/0009_test.yml.tt2 b/scenarios/invite_peerout_max_out/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios/invite_peerout_max_out/0009_test.yml.tt2
+++ b/scenarios/invite_peerout_max_out/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite/0005_test.yml.tt2 b/scenarios/invite_peerout_rewrite/0005_test.yml.tt2
index dded52c4..d36c897f 100644
--- a/scenarios/invite_peerout_rewrite/0005_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite/0006_test.yml.tt2 b/scenarios/invite_peerout_rewrite/0006_test.yml.tt2
index b927a13d..8cd56960 100644
--- a/scenarios/invite_peerout_rewrite/0006_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite/0009_test.yml.tt2 b/scenarios/invite_peerout_rewrite/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios/invite_peerout_rewrite/0009_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite_pv_regex/0005_test.yml.tt2 b/scenarios/invite_peerout_rewrite_pv_regex/0005_test.yml.tt2
index 174eb39c..1051f081 100644
--- a/scenarios/invite_peerout_rewrite_pv_regex/0005_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite_pv_regex/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite_pv_regex/0006_test.yml.tt2 b/scenarios/invite_peerout_rewrite_pv_regex/0006_test.yml.tt2
index f3ef98ef..51363406 100644
--- a/scenarios/invite_peerout_rewrite_pv_regex/0006_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite_pv_regex/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_peerout_rewrite_pv_regex/0009_test.yml.tt2 b/scenarios/invite_peerout_rewrite_pv_regex/0009_test.yml.tt2
index ba39a17b..19fa2b4e 100644
--- a/scenarios/invite_peerout_rewrite_pv_regex/0009_test.yml.tt2
+++ b/scenarios/invite_peerout_rewrite_pv_regex/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_record_call/0006_test.yml.tt2 b/scenarios/invite_record_call/0006_test.yml.tt2
index d31e9f8e..b7a6b779 100644
--- a/scenarios/invite_record_call/0006_test.yml.tt2
+++ b/scenarios/invite_record_call/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_record_call/0007_test.yml.tt2 b/scenarios/invite_record_call/0007_test.yml.tt2
index 6b9a7d4b..af259a6b 100644
--- a/scenarios/invite_record_call/0007_test.yml.tt2
+++ b/scenarios/invite_record_call/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_record_call/0009_test.yml.tt2 b/scenarios/invite_record_call/0009_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_record_call/0009_test.yml.tt2
+++ b/scenarios/invite_record_call/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_record_call/0010_test.yml.tt2 b/scenarios/invite_record_call/0010_test.yml.tt2
index 4aab63ee..d8360c1d 100644
--- a/scenarios/invite_record_call/0010_test.yml.tt2
+++ b/scenarios/invite_record_call/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_record_call/0013_test.yml.tt2 b/scenarios/invite_record_call/0013_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_record_call/0013_test.yml.tt2
+++ b/scenarios/invite_record_call/0013_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_redirect/0009_test.yml.tt2 b/scenarios/invite_redirect/0009_test.yml.tt2
index eaa9be8e..431c7be0 100644
--- a/scenarios/invite_redirect/0009_test.yml.tt2
+++ b/scenarios/invite_redirect/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_redirect/0011_test.yml.tt2 b/scenarios/invite_redirect/0011_test.yml.tt2
index 28dd024a..a640a866 100644
--- a/scenarios/invite_redirect/0011_test.yml.tt2
+++ b/scenarios/invite_redirect/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_redirect/0012_test.yml.tt2 b/scenarios/invite_redirect/0012_test.yml.tt2
index 31102f6d..ff79b627 100644
--- a/scenarios/invite_redirect/0012_test.yml.tt2
+++ b/scenarios/invite_redirect/0012_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_redirect/0015_test.yml.tt2 b/scenarios/invite_redirect/0015_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_redirect/0015_test.yml.tt2
+++ b/scenarios/invite_redirect/0015_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_redirect_blocked/0007_test.yml.tt2 b/scenarios/invite_redirect_blocked/0007_test.yml.tt2
index 3bc97212..6745d43b 100644
--- a/scenarios/invite_redirect_blocked/0007_test.yml.tt2
+++ b/scenarios/invite_redirect_blocked/0007_test.yml.tt2
@@ -1,38 +1,40 @@
 flow:
-    - start|REPLY_ROUTE_NAT:
-    - start|ROUTE_ENTRY:
-    - return|ROUTE_ENTRY:
-    - start|ROUTE_PREPARE_UA:
-    - return|ROUTE_PREPARE_UA:
-    - start|ROUTE_EXIT:
-    - start|ROUTE_RUNTIME:
-    - return|ROUTE_RUNTIME:
-    - start|FAILURE_ROUTE_LOCAL:
-    - start|ROUTE_INITVARS:
-    - return|ROUTE_INITVARS:
-    - start|ROUTE_STOP_RTPPROXY_BRANCH:
-    - start|ROUTE_RESTORE_CLUSTERSET:
-    - return|ROUTE_RESTORE_CLUSTERSET:
-    - return|ROUTE_STOP_RTPPROXY_BRANCH:
-    - start|ROUTE_CF_CFNA:
-    - return|ROUTE_CF_CFNA:
-    - start|ROUTE_EARLY_REJECT:
-    - start|ROUTE_ADD_CALLINFO_REPLY:
-    - start|ROUTE_ADD_CALLINFO_CALLER_PRIMARY:
-    - return|ROUTE_ADD_CALLINFO_CALLER_PRIMARY:
-    - start|ROUTE_ADD_CALLINFO_CALLEE_PRIMARY:
-    - return|ROUTE_ADD_CALLINFO_CALLEE_PRIMARY:
-    - return|ROUTE_ADD_CALLINFO_REPLY:
-    - start|dialog:failed:
-    - return|dialog:failed:
-        $avp(lua_dlg_profile): None
-    - return|dialog:failed:
-    - start|ROUTE_EARLY_REJECT:
-    - start|ROUTE_RUNTIME:
-    - return|ROUTE_RUNTIME:
-    - start|FAILURE_ROUTE_LOCAL:
-    - exit|ROUTE_EXIT:
-    - exit|ROUTE_EXIT:
+  - start|DEFAULT_ONREPLY:
+  - start|REPLY_ROUTE_NAT:
+  - start|ROUTE_ENTRY:
+  - return|ROUTE_ENTRY:
+  - start|ROUTE_PREPARE_UA:
+  - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
+  - start|ROUTE_EXIT:
+  - start|ROUTE_RUNTIME:
+  - return|ROUTE_RUNTIME:
+  - start|FAILURE_ROUTE_LOCAL:
+  - start|ROUTE_INITVARS:
+  - return|ROUTE_INITVARS:
+  - start|ROUTE_STOP_RTPPROXY_BRANCH:
+  - start|ROUTE_RESTORE_CLUSTERSET:
+  - return|ROUTE_RESTORE_CLUSTERSET:
+  - return|ROUTE_STOP_RTPPROXY_BRANCH:
+  - start|ROUTE_CF_CFNA:
+  - return|ROUTE_CF_CFNA:
+  - start|ROUTE_EARLY_REJECT:
+  - start|ROUTE_ADD_CALLINFO_REPLY:
+  - start|ROUTE_ADD_CALLINFO_CALLER_PRIMARY:
+  - return|ROUTE_ADD_CALLINFO_CALLER_PRIMARY:
+  - start|ROUTE_ADD_CALLINFO_CALLEE_PRIMARY:
+  - return|ROUTE_ADD_CALLINFO_CALLEE_PRIMARY:
+  - return|ROUTE_ADD_CALLINFO_REPLY:
+  - start|dialog:failed:
+  - return|dialog:failed:
+      $avp(lua_dlg_profile): None
+  - return|dialog:failed:
+  - start|ROUTE_EARLY_REJECT:
+  - start|ROUTE_RUNTIME:
+  - return|ROUTE_RUNTIME:
+  - start|FAILURE_ROUTE_LOCAL:
+  - exit|ROUTE_EXIT:
+  - exit|ROUTE_EXIT:
 sip_in:
   - '^SIP/2.0 302 Moved Temporarily'
   - 'From: <sip:4311002@'
diff --git a/scenarios/invite_retrans/0007_test.yml.tt2 b/scenarios/invite_retrans/0007_test.yml.tt2
index 0c9a2fd6..99849309 100644
--- a/scenarios/invite_retrans/0007_test.yml.tt2
+++ b/scenarios/invite_retrans/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_retrans/0008_test.yml.tt2 b/scenarios/invite_retrans/0008_test.yml.tt2
index 55ad17d5..5ac367a9 100644
--- a/scenarios/invite_retrans/0008_test.yml.tt2
+++ b/scenarios/invite_retrans/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_retrans/0011_test.yml.tt2 b/scenarios/invite_retrans/0011_test.yml.tt2
index 40bba2c1..5a7455d7 100644
--- a/scenarios/invite_retrans/0011_test.yml.tt2
+++ b/scenarios/invite_retrans/0011_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_trusted_anonymous/0005_test.yml.tt2 b/scenarios/invite_trusted_anonymous/0005_test.yml.tt2
index 6cf804ab..74144967 100644
--- a/scenarios/invite_trusted_anonymous/0005_test.yml.tt2
+++ b/scenarios/invite_trusted_anonymous/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_trusted_anonymous/0006_test.yml.tt2 b/scenarios/invite_trusted_anonymous/0006_test.yml.tt2
index 0cb7f7ed..6fff4101 100644
--- a/scenarios/invite_trusted_anonymous/0006_test.yml.tt2
+++ b/scenarios/invite_trusted_anonymous/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_trusted_anonymous/0009_test.yml.tt2 b/scenarios/invite_trusted_anonymous/0009_test.yml.tt2
index 4eb04093..52f53318 100644
--- a/scenarios/invite_trusted_anonymous/0009_test.yml.tt2
+++ b/scenarios/invite_trusted_anonymous/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/invite_voicebox/0013_test.yml.tt2 b/scenarios/invite_voicebox/0013_test.yml.tt2
index 7047897f..801ec81f 100644
--- a/scenarios/invite_voicebox/0013_test.yml.tt2
+++ b/scenarios/invite_voicebox/0013_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/lock_ported/0017_test.yml.tt2 b/scenarios/lock_ported/0017_test.yml.tt2
index 729abe39..143a2603 100644
--- a/scenarios/lock_ported/0017_test.yml.tt2
+++ b/scenarios/lock_ported/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/lock_ported/0018_test.yml.tt2 b/scenarios/lock_ported/0018_test.yml.tt2
index 2661949f..af453f8b 100644
--- a/scenarios/lock_ported/0018_test.yml.tt2
+++ b/scenarios/lock_ported/0018_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios/reminder/0007_test.yml.tt2 b/scenarios/reminder/0007_test.yml.tt2
index 249b61a6..be465ff5 100644
--- a/scenarios/reminder/0007_test.yml.tt2
+++ b/scenarios/reminder/0007_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/incoming_peer/0005_test.yml.tt2 b/scenarios_lnp/incoming_peer/0005_test.yml.tt2
index 9c8944f3..8cf94aba 100644
--- a/scenarios_lnp/incoming_peer/0005_test.yml.tt2
+++ b/scenarios_lnp/incoming_peer/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -18,6 +19,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/incoming_peer/0007_test.yml.tt2 b/scenarios_lnp/incoming_peer/0007_test.yml.tt2
index 68fe9a91..d36dd9de 100644
--- a/scenarios_lnp/incoming_peer/0007_test.yml.tt2
+++ b/scenarios_lnp/incoming_peer/0007_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/incoming_peer/0008_test.yml.tt2 b/scenarios_lnp/incoming_peer/0008_test.yml.tt2
index ae3f72c3..9871a32e 100644
--- a/scenarios_lnp/incoming_peer/0008_test.yml.tt2
+++ b/scenarios_lnp/incoming_peer/0008_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_CF_LOOP:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
diff --git a/scenarios_lnp/incoming_peer/0013_test.yml.tt2 b/scenarios_lnp/incoming_peer/0013_test.yml.tt2
index 367be96b..b9900ac0 100644
--- a/scenarios_lnp/incoming_peer/0013_test.yml.tt2
+++ b/scenarios_lnp/incoming_peer/0013_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/incoming_peer/0014_test.yml.tt2 b/scenarios_lnp/incoming_peer/0014_test.yml.tt2
index cfaa2294..7cf87437 100644
--- a/scenarios_lnp/incoming_peer/0014_test.yml.tt2
+++ b/scenarios_lnp/incoming_peer/0014_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite/0005_test.yml.tt2 b/scenarios_lnp/invite/0005_test.yml.tt2
index d60a55ce..24218759 100644
--- a/scenarios_lnp/invite/0005_test.yml.tt2
+++ b/scenarios_lnp/invite/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -23,6 +24,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite/0006_test.yml.tt2 b/scenarios_lnp/invite/0006_test.yml.tt2
index 3cfd0bb3..c56f9882 100644
--- a/scenarios_lnp/invite/0006_test.yml.tt2
+++ b/scenarios_lnp/invite/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite/0009_test.yml.tt2 b/scenarios_lnp/invite/0009_test.yml.tt2
index 9412381d..3a544ffe 100644
--- a/scenarios_lnp/invite/0009_test.yml.tt2
+++ b/scenarios_lnp/invite/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_black/0013_test.yml.tt2 b/scenarios_lnp/invite_ncos_black/0013_test.yml.tt2
index 9dd666c6..c67d5a61 100644
--- a/scenarios_lnp/invite_ncos_black/0013_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_black/0013_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -19,6 +20,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_black/0014_test.yml.tt2 b/scenarios_lnp/invite_ncos_black/0014_test.yml.tt2
index d4ad29db..e6d4fe96 100644
--- a/scenarios_lnp/invite_ncos_black/0014_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_black/0014_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_black/0017_test.yml.tt2 b/scenarios_lnp/invite_ncos_black/0017_test.yml.tt2
index d2eba78f..75417e1d 100644
--- a/scenarios_lnp/invite_ncos_black/0017_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_black/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0005_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0005_test.yml.tt2
index c4f26866..0c81462d 100644
--- a/scenarios_lnp/invite_ncos_white/0005_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -19,6 +20,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0006_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0006_test.yml.tt2
index d3da86a0..97a9e58b 100644
--- a/scenarios_lnp/invite_ncos_white/0006_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0009_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0009_test.yml.tt2
index c346541f..1b149147 100644
--- a/scenarios_lnp/invite_ncos_white/0009_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0014_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0014_test.yml.tt2
index 6eca6aa5..1dee2d15 100644
--- a/scenarios_lnp/invite_ncos_white/0014_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0014_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -19,6 +20,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0015_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0015_test.yml.tt2
index 5ccae79c..fd69d4e2 100644
--- a/scenarios_lnp/invite_ncos_white/0015_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0015_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_ncos_white/0018_test.yml.tt2 b/scenarios_lnp/invite_ncos_white/0018_test.yml.tt2
index d30c58db..ff4439ad 100644
--- a/scenarios_lnp/invite_ncos_white/0018_test.yml.tt2
+++ b/scenarios_lnp/invite_ncos_white/0018_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout/0005_test.yml.tt2 b/scenarios_lnp/invite_peerout/0005_test.yml.tt2
index a7eb26a5..3e1e4791 100644
--- a/scenarios_lnp/invite_peerout/0005_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout/0005_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -19,6 +20,7 @@ flow:
       ]
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout/0006_test.yml.tt2 b/scenarios_lnp/invite_peerout/0006_test.yml.tt2
index b927a13d..8cd56960 100644
--- a/scenarios_lnp/invite_peerout/0006_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout/0009_test.yml.tt2 b/scenarios_lnp/invite_peerout/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios_lnp/invite_peerout/0009_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout_rn/0005_test.yml.tt2 b/scenarios_lnp/invite_peerout_rn/0005_test.yml.tt2
index dded52c4..d36c897f 100644
--- a/scenarios_lnp/invite_peerout_rn/0005_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout_rn/0005_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout_rn/0006_test.yml.tt2 b/scenarios_lnp/invite_peerout_rn/0006_test.yml.tt2
index 3eba8571..42868494 100644
--- a/scenarios_lnp/invite_peerout_rn/0006_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout_rn/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_lnp/invite_peerout_rn/0009_test.yml.tt2 b/scenarios_lnp/invite_peerout_rn/0009_test.yml.tt2
index 244e0335..beb864e5 100644
--- a/scenarios_lnp/invite_peerout_rn/0009_test.yml.tt2
+++ b/scenarios_lnp/invite_peerout_rn/0009_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0022_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0022_test.yml.tt2
index 514a6348..8551002b 100644
--- a/scenarios_pbx/incoming_shared_line/0022_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0022_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0023_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0023_test.yml.tt2
index a7d39dd9..ee3185c3 100644
--- a/scenarios_pbx/incoming_shared_line/0023_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0023_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0024_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0024_test.yml.tt2
index 3b7385d0..276be4fd 100644
--- a/scenarios_pbx/incoming_shared_line/0024_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0024_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0025_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0025_test.yml.tt2
index 2d28288f..c470e1be 100644
--- a/scenarios_pbx/incoming_shared_line/0025_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0025_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0027_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0027_test.yml.tt2
index c600e208..0c809616 100644
--- a/scenarios_pbx/incoming_shared_line/0027_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0027_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0028_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0028_test.yml.tt2
index ba28a3ed..56a94c5c 100644
--- a/scenarios_pbx/incoming_shared_line/0028_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0028_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -8,6 +9,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0037_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0037_test.yml.tt2
index 4a28c5f3..2ffb86f3 100644
--- a/scenarios_pbx/incoming_shared_line/0037_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0037_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/incoming_shared_line/0038_test.yml.tt2 b/scenarios_pbx/incoming_shared_line/0038_test.yml.tt2
index 6bf651b2..416428d4 100644
--- a/scenarios_pbx/incoming_shared_line/0038_test.yml.tt2
+++ b/scenarios_pbx/incoming_shared_line/0038_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0006_test.yml.tt2 b/scenarios_pbx/invite/0006_test.yml.tt2
index 653852ea..5e2a0e02 100644
--- a/scenarios_pbx/invite/0006_test.yml.tt2
+++ b/scenarios_pbx/invite/0006_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
       $avp(lua_dlg_profile): [
         "totalaccountout:[% customerpbx_test.id %]",
@@ -13,6 +14,7 @@ flow:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0009_test.yml.tt2 b/scenarios_pbx/invite/0009_test.yml.tt2
index d89c982e..76c626fa 100644
--- a/scenarios_pbx/invite/0009_test.yml.tt2
+++ b/scenarios_pbx/invite/0009_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
       $avp(lua_dlg_profile): [
         "local",
@@ -8,6 +9,7 @@ flow:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0010_test.yml.tt2 b/scenarios_pbx/invite/0010_test.yml.tt2
index 5e727974..5c7545d7 100644
--- a/scenarios_pbx/invite/0010_test.yml.tt2
+++ b/scenarios_pbx/invite/0010_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
       $avp(lua_dlg_profile): [
         "totalaccountout:[% customerpbx_test.id %]",
@@ -15,6 +16,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0011_test.yml.tt2 b/scenarios_pbx/invite/0011_test.yml.tt2
index ee78eafd..663a6c56 100644
--- a/scenarios_pbx/invite/0011_test.yml.tt2
+++ b/scenarios_pbx/invite/0011_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0012_test.yml.tt2 b/scenarios_pbx/invite/0012_test.yml.tt2
index 237adab1..af8a6417 100644
--- a/scenarios_pbx/invite/0012_test.yml.tt2
+++ b/scenarios_pbx/invite/0012_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -8,6 +9,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0017_test.yml.tt2 b/scenarios_pbx/invite/0017_test.yml.tt2
index 21004aea..89b7a473 100644
--- a/scenarios_pbx/invite/0017_test.yml.tt2
+++ b/scenarios_pbx/invite/0017_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite/0018_test.yml.tt2 b/scenarios_pbx/invite/0018_test.yml.tt2
index 4fbfe05f..baaf4686 100644
--- a/scenarios_pbx/invite/0018_test.yml.tt2
+++ b/scenarios_pbx/invite/0018_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0019_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0019_test.yml.tt2
index 988c9e3c..eb258dfc 100644
--- a/scenarios_pbx/invite_shared_line/0019_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0019_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0020_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0020_test.yml.tt2
index 4f1cdbee..cc5b0a80 100644
--- a/scenarios_pbx/invite_shared_line/0020_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0020_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0023_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0023_test.yml.tt2
index 74aafaa3..f3f7baf5 100644
--- a/scenarios_pbx/invite_shared_line/0023_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0023_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0024_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0024_test.yml.tt2
index 66ac63d0..4ce90221 100644
--- a/scenarios_pbx/invite_shared_line/0024_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0024_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -8,6 +9,7 @@ flow:
   - return|ROUTE_PREPARE_UA:
   - start|REPLY_ROUTE_RTPENGINE:
   - return|REPLY_ROUTE_RTPENGINE:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0031_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0031_test.yml.tt2
index aa957b72..162c60a2 100644
--- a/scenarios_pbx/invite_shared_line/0031_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0031_test.yml.tt2
@@ -1,9 +1,11 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME:
diff --git a/scenarios_pbx/invite_shared_line/0032_test.yml.tt2 b/scenarios_pbx/invite_shared_line/0032_test.yml.tt2
index d97081c8..cecb15dc 100644
--- a/scenarios_pbx/invite_shared_line/0032_test.yml.tt2
+++ b/scenarios_pbx/invite_shared_line/0032_test.yml.tt2
@@ -1,4 +1,5 @@
 flow:
+  - start|DEFAULT_ONREPLY:
   - start|REPLY_ROUTE_NAT:
   - start|ROUTE_ENTRY:
   - return|ROUTE_ENTRY:
@@ -6,6 +7,7 @@ flow:
   - return|REPLY_SCA_UPDATE:
   - start|ROUTE_PREPARE_UA:
   - return|ROUTE_PREPARE_UA:
+  - start|REPLY_ROUTE_NAT_CONTINUE:
   - start|ROUTE_EXIT:
   - start|ROUTE_RUNTIME:
   - return|ROUTE_RUNTIME: