diff --git a/scenarios/incoming_foreign_dom/0015_test.yml.tt2 b/scenarios/incoming_foreign_dom/0015_test.yml.tt2
index b6f5bdf5..e46cce5d 100644
--- a/scenarios/incoming_foreign_dom/0015_test.yml.tt2
+++ b/scenarios/incoming_foreign_dom/0015_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:external@incoming-foreign-dom.external.test>;tag=[\w-]+'
diff --git a/scenarios/invite_callee_bye/0018_test.yml.tt2 b/scenarios/invite_callee_bye/0018_test.yml.tt2
index 92f32377..f5c6fa70 100644
--- a/scenarios/invite_callee_bye/0018_test.yml.tt2
+++ b/scenarios/invite_callee_bye/0018_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:testuser1003@invite-callee-bye.scenarios.test>;tag=[\w-]+'
@@ -25,5 +14,4 @@ sip_out:
       'To: <sip:[% invite_callee_bye_scenarios_test.testuser1002.alias_numbers.0.phone_number %]@invite-callee-bye.scenarios.test>;tag=[\w-]+',
       'CSeq: \d+ BYE',
       'Content-Length: 0',
-      'P-Out-Socket: udp:[% server_ip %]:5060',
     ]
diff --git a/scenarios/invite_callforward_cfna/0023_test.yml.tt2 b/scenarios/invite_callforward_cfna/0023_test.yml.tt2
index e399ead1..2017bd72 100644
--- a/scenarios/invite_callforward_cfna/0023_test.yml.tt2
+++ b/scenarios/invite_callforward_cfna/0023_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
  - 'SIP/2.0 200 OK'
  - 'From: <sip:[% invite_callforward_cfna_scenarios_test.testuser1001.phone_number %]@'
diff --git a/scenarios/invite_callforward_cfr/0031_test.yml.tt2 b/scenarios/invite_callforward_cfr/0031_test.yml.tt2
index 9bd32c26..d296bea6 100644
--- a/scenarios/invite_callforward_cfr/0031_test.yml.tt2
+++ b/scenarios/invite_callforward_cfr/0031_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
  - 'SIP/2.0 200 OK'
  - 'From: <sip:[% invite_callforward_cfr_scenarios_test.testuser1001.phone_number %]@invite-callforward-cfr.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_emergency/0015_test.yml.tt2 b/scenarios/invite_emergency/0015_test.yml.tt2
index 6cbbfa81..35fff61c 100644
--- a/scenarios/invite_emergency/0015_test.yml.tt2
+++ b/scenarios/invite_emergency/0015_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_emergency_scenarios_test.testuser1002.phone_number %]@invite-emergency.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_emergency_cirpack/0015_test.yml.tt2 b/scenarios/invite_emergency_cirpack/0015_test.yml.tt2
index c78162eb..debbeaf4 100644
--- a/scenarios/invite_emergency_cirpack/0015_test.yml.tt2
+++ b/scenarios/invite_emergency_cirpack/0015_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_emergency_cirpack_scenarios_test.testuser1002.phone_number %]@invite-emergency-cirpack.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_emergency_pidflo/0015_test.yml.tt2 b/scenarios/invite_emergency_pidflo/0015_test.yml.tt2
index 3aed86c4..255c82ff 100644
--- a/scenarios/invite_emergency_pidflo/0015_test.yml.tt2
+++ b/scenarios/invite_emergency_pidflo/0015_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_emergency_pidflo_scenarios_test.testuser1002.phone_number %]@invite-emergency-pidflo.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_locmap_add/0028_test.yml.tt2 b/scenarios/invite_locmap_add/0028_test.yml.tt2
index d4a33b66..51caee05 100644
--- a/scenarios/invite_locmap_add/0028_test.yml.tt2
+++ b/scenarios/invite_locmap_add/0028_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_locmap_add_scenarios_test.testuser1000.phone_number %]@invite-locmap-add.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_prack/0011_test.yml.tt2 b/scenarios/invite_prack/0011_test.yml.tt2
index 94769692..5da885b5 100644
--- a/scenarios/invite_prack/0011_test.yml.tt2
+++ b/scenarios/invite_prack/0011_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_prack_scenarios_test.testuser1012.phone_number %]@invite-prack.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_redirect/0031_test.yml.tt2 b/scenarios/invite_redirect/0031_test.yml.tt2
index d92f9c7a..021298ca 100644
--- a/scenarios/invite_redirect/0031_test.yml.tt2
+++ b/scenarios/invite_redirect/0031_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_redirect_scenarios_test.testuser1002.phone_number %]@'
diff --git a/scenarios/invite_redirect_tel_uri/0031_test.yml.tt2 b/scenarios/invite_redirect_tel_uri/0031_test.yml.tt2
index d97738dc..7300ca3e 100644
--- a/scenarios/invite_redirect_tel_uri/0031_test.yml.tt2
+++ b/scenarios/invite_redirect_tel_uri/0031_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
  - '^SIP/2.0 200 OK'
  - 'From: <sip:[% invite_redirect_tel_uri_scenarios_test.testuser1000.phone_number %]@invite-redirect-tel-uri.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_reinvite_caller_transcoding/0023_test.yml.tt2 b/scenarios/invite_reinvite_caller_transcoding/0023_test.yml.tt2
index 9fd18578..164a499e 100644
--- a/scenarios/invite_reinvite_caller_transcoding/0023_test.yml.tt2
+++ b/scenarios/invite_reinvite_caller_transcoding/0023_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% invite_reinvite_caller_transcoding_scenarios_test.testuser1002.phone_number %]@invite-reinvite-caller-transcoding.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_reinvite_transcoding/0014_test.yml.tt2 b/scenarios/invite_reinvite_transcoding/0014_test.yml.tt2
index 318e2287..d071a9fc 100644
--- a/scenarios/invite_reinvite_transcoding/0014_test.yml.tt2
+++ b/scenarios/invite_reinvite_transcoding/0014_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 100 Trying'
   - 'From: <sip:[% scenarios.0.responders.0.username %]@invite-reinvite-transcoding.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/invite_reinvite_transcoding/0018_test.yml.tt2 b/scenarios/invite_reinvite_transcoding/0018_test.yml.tt2
index 074e2467..3b026efc 100644
--- a/scenarios/invite_reinvite_transcoding/0018_test.yml.tt2
+++ b/scenarios/invite_reinvite_transcoding/0018_test.yml.tt2
@@ -1,19 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - 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:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% scenarios.0.responders.0.username %]@invite-reinvite-transcoding.scenarios.test>;tag=[\w-]+'
@@ -34,7 +21,6 @@ sip_out:
       'Contact: <sip:127.0.0.1:508[08];transport=udp>',
       'Content-Type: application/sdp',
       'Content-Length:\s+\d+',
-      'P-Out-Socket: udp:[% server_ip %]:5060',
       'a=rtpmap:18 G729/8000',
       '_:NOT:_a=rtpmap:8 PCMA/8000',
       '_:NOT:_a=rtpmap:0 PCMU/8000',
diff --git a/scenarios/invite_reinvite_transcoding/0023_test.yml.tt2 b/scenarios/invite_reinvite_transcoding/0023_test.yml.tt2
index 0900073d..5c02f093 100644
--- a/scenarios/invite_reinvite_transcoding/0023_test.yml.tt2
+++ b/scenarios/invite_reinvite_transcoding/0023_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% scenarios.0.username %]@invite-reinvite-transcoding.scenarios.test>;tag=[\w-]+'
diff --git a/scenarios/timer_session_supported/0023_test.yml.tt2 b/scenarios/timer_session_supported/0023_test.yml.tt2
index 957efae1..89eb5277 100644
--- a/scenarios/timer_session_supported/0023_test.yml.tt2
+++ b/scenarios/timer_session_supported/0023_test.yml.tt2
@@ -1,17 +1,6 @@
 flow:
   - start|DEFAULT_ONREPLY:
-  - start|REPLY_ROUTE_NAT:
-  - start|ROUTE_ENTRY:
-  - return|ROUTE_ENTRY:
-  - start|ROUTE_APPLY_HEADER_RULES:
-  - return|ROUTE_APPLY_HEADER_RULES:
-  - start|ROUTE_PREPARE_UA:
-  - return|ROUTE_PREPARE_UA:
-  - start|REPLY_ROUTE_NAT_CONTINUE:
-  - start|ROUTE_EXIT:
-  - start|ROUTE_RUNTIME:
-  - return|ROUTE_RUNTIME:
-  - exit|ROUTE_EXIT:
+  - return|DEFAULT_ONREPLY:
 sip_in:
   - 'SIP/2.0 200 OK'
   - 'From: <sip:[% scenarios.0.username %]@timer-session-supported.scenarios.test>;tag=[\w-]+'