diff --git a/scenarios/check.sh b/scenarios/check.sh
index d175d87a..6c095df2 100755
--- a/scenarios/check.sh
+++ b/scenarios/check.sh
@@ -61,9 +61,6 @@ function error_sipp
   echo $1
   delete_voip ${DOMAIN}
   find ${SCEN_CHECK_DIR}/ -type f -name 'sipp_scenario*errors.log' -exec mv {} ${LOG_DIR} \;
-  if [ -f ${SCEN_CHECK_DIR}/sipp_scenario_responder.xml ]; then
-    find ${SCEN_DIR}/register/ -type f -name 'sipp_scenario*errors.log' -exec mv {} ${LOG_DIR} \;
-  fi
   exit $2
 }
 
@@ -80,14 +77,15 @@ function run_sipp
 
   ${BASE_DIR}/restart_log.sh
   if [ -f ${SCEN_CHECK_DIR}/sipp_scenario_responder.xml ]; then
-    ${BASE_DIR}/sipp.sh -d ${DOMAIN} -r ${SCEN_CHECK_DIR}/sipp_scenario_responder.xml &
+    ${BASE_DIR}/sipp.sh -d ${DOMAIN} -r ${SCEN_CHECK_DIR}/sipp_scenario_responder_reg.xml
+    ${BASE_DIR}/sipp.sh -d ${DOMAIN} -r ${SCEN_CHECK_DIR}/sipp_scenario_responder.xml
   fi
   # let's fire sipp scenario
   ${BASE_DIR}/sipp.sh -d ${DOMAIN} $1
   status=$?
   # copy the kamailio log
   cp ${KAM_LOG} ${LOG_FILE} ${LOG_DIR}/kamailio.log
-
+  find ${SCEN_CHECK_DIR}/ -type f -name 'sipp_scenario*errors.log' -exec mv {} ${LOG_DIR} \;
   if [[ $status -ne 0 ]]; then
     error_sipp "error in sipp" 2
   fi
diff --git a/scenarios/invite/0001_test.yml b/scenarios/invite/0001_test.yml
new file mode 100644
index 00000000..b206d4fa
--- /dev/null
+++ b/scenarios/invite/0001_test.yml
@@ -0,0 +1,27 @@
+# REGISTER scenario
+flow:
+  - start|MAIN:
+  - start|ROUTE_NET_INFO:
+  - end|ROUTE_NET_INFO:
+  - start|ROUTE_PRX_REQUEST:
+  - start|ROUTE_INVITE:
+  - start|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - end|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - start|ROUTE_FIND_CALLER:
+  - start|ROUTE_AUTH:
+  - exit|ROUTE_AUTH:
+sip_in:
+  - '^INVITE'
+  - 'Contact: sip:testuser2@'
+  - 'CSeq: 1 INVITE'
+  - 'Max-Forwards: 16'
+  - 'Content-Type: application/sdp'
+sip_out:
+  - [
+      '^SIP/2.0 100 Trying',
+      'CSeq: 1 INVITE'
+    ]
+  - [
+      '^SIP/2.0 407 Proxy Authentication Required',
+      'CSeq: 1 INVITE'
+    ]
diff --git a/scenarios/invite/0003_test.yml b/scenarios/invite/0003_test.yml
new file mode 100644
index 00000000..30cb4dc0
--- /dev/null
+++ b/scenarios/invite/0003_test.yml
@@ -0,0 +1,80 @@
+# REGISTER scenario
+flow:
+  - start|MAIN:
+  - start|ROUTE_NET_INFO:
+  - end|ROUTE_NET_INFO:
+  - start|ROUTE_PRX_REQUEST:
+  - start|ROUTE_INVITE:
+  - start|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - end|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - start|ROUTE_FIND_CALLER:
+  - start|ROUTE_AUTH:
+  - start|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_AUTH:
+  - end|ROUTE_FIND_CALLER:
+  - start|ROUTE_LOAD_CALLER_PREF:
+  - start|ROUTE_CLEAR_CALLER_PREF:
+  - end|ROUTE_CLEAR_CALLER_PREF:
+  - end|ROUTE_LOAD_CALLER_PREF:
+  - start|ROUTE_GET_CALLER_CLI:
+  - end|ROUTE_GET_CALLER_CLI:
+  - start|ROUTE_GET_FORWARDER_CLI:
+  - return|ROUTE_GET_FORWARDER_CLI:
+  - start|ROUTE_CHECK_USERPROV_CLI:
+  - start|ROUTE_CHECK_CLI_ALLOWED:
+  - end|ROUTE_CHECK_CLI_ALLOWED:
+  - end|ROUTE_CHECK_USERPROV_CLI:
+  - start|ROUTE_CLIR:
+  - end|ROUTE_CLIR:
+  - start|ROUTE_FIND_CALLEE:
+  - start|ROUTE_CLEAR_CALLEE_PREF:
+  - end|ROUTE_CLEAR_CALLEE_PREF:
+  - start|ROUTE_NCOS:
+  - end|ROUTE_NCOS:
+  - start|ROUTE_NCOS:
+  - end|ROUTE_NCOS:
+  - start|ROUTE_BLOCK_OUT:
+  - end|ROUTE_BLOCK_OUT:
+  - start|ROUTE_LOAD_CALLEE_PREF:
+  - start|ROUTE_BLOCK_IN:
+  - end|ROUTE_BLOCK_IN:
+  - end|ROUTE_LOAD_CALLEE_PREF:
+  - start|ROUTE_INVITE_TO_INT:
+  - start|ROUTE_ACC_FAILURE:
+  - start|ROUTE_ACC_CALLER:
+  - end|ROUTE_ACC_CALLER:
+  - start|ROUTE_ACC_CALLEE:
+  - end|ROUTE_ACC_CALLEE:
+  - end|ROUTE_ACC_FAILURE:
+  - start|ROUTE_EARLY_REJECT: 
+  - start|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_ADD_CALLINFO_REPLY:
+  - exit|ROUTE_EARLY_REJECT:
+sip_in:
+  - '^INVITE'
+  - 'Contact: sip:testuser2@'
+  - 'CSeq: 2 INVITE'
+  - 'Max-Forwards: 16'
+  - 'Content-Type: application/sdp'
+  - 'Proxy-Authorization: Digest username="testuser2"'
+sip_out:
+  - [
+      '^SIP/2.0 100 Trying',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@'
+    ]
+  - [
+      '^SIP/2.0 101 Connecting',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@',
+      'P-NGCP-Authorization: testuser2',
+      'P-NGCP-Authorized: 1'
+    ]
+  - [
+      '^SIP/2.0 480 Offline',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@',
+      'P-NGCP-Authorization: testuser2',
+      'P-NGCP-Authorized: 1'
+    ]
diff --git a/scenarios/invite/0005_test.yml b/scenarios/invite/0005_test.yml
new file mode 100644
index 00000000..efdf7d16
--- /dev/null
+++ b/scenarios/invite/0005_test.yml
@@ -0,0 +1,76 @@
+# REGISTER scenario
+flow:
+  - start|MAIN:
+  - start|ROUTE_NET_INFO:
+  - end|ROUTE_NET_INFO:
+  - start|ROUTE_PRX_REQUEST:
+  - start|ROUTE_INVITE:
+  - start|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - end|ROUTE_LOAD_CALLEE_DOMAIN_PREF:
+  - start|ROUTE_FIND_CALLER:
+  - start|ROUTE_AUTH:
+  - start|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_AUTH:
+  - end|ROUTE_FIND_CALLER:
+  - start|ROUTE_LOAD_CALLER_PREF:
+  - start|ROUTE_CLEAR_CALLER_PREF:
+  - end|ROUTE_CLEAR_CALLER_PREF:
+  - end|ROUTE_LOAD_CALLER_PREF:
+  - start|ROUTE_GET_CALLER_CLI:
+  - end|ROUTE_GET_CALLER_CLI:
+  - start|ROUTE_GET_FORWARDER_CLI:
+  - return|ROUTE_GET_FORWARDER_CLI:
+  - start|ROUTE_CHECK_USERPROV_CLI:
+  - start|ROUTE_CHECK_CLI_ALLOWED:
+  - end|ROUTE_CHECK_CLI_ALLOWED:
+  - end|ROUTE_CHECK_USERPROV_CLI:
+  - start|ROUTE_CLIR:
+  - end|ROUTE_CLIR:
+  - start|ROUTE_FIND_CALLEE:
+  - start|ROUTE_CLEAR_CALLEE_PREF:
+  - end|ROUTE_CLEAR_CALLEE_PREF:
+  - start|ROUTE_NCOS:
+  - end|ROUTE_NCOS:
+  - start|ROUTE_NCOS:
+  - end|ROUTE_NCOS:
+  - start|ROUTE_BLOCK_OUT:
+  - end|ROUTE_BLOCK_OUT:
+  - start|ROUTE_LOAD_CALLEE_PREF:
+  - start|ROUTE_BLOCK_IN:
+  - end|ROUTE_BLOCK_IN:
+  - end|ROUTE_LOAD_CALLEE_PREF:
+  - start|ROUTE_INVITE_TO_INT:
+  - start|ROUTE_ACC_FAILURE:
+  - start|ROUTE_ACC_CALLER:
+  - end|ROUTE_ACC_CALLER:
+  - start|ROUTE_ACC_CALLEE:
+  - end|ROUTE_ACC_CALLEE:
+  - end|ROUTE_ACC_FAILURE:
+  - start|ROUTE_EARLY_REJECT: 
+  - start|ROUTE_ADD_CALLINFO_REPLY:
+  - end|ROUTE_ADD_CALLINFO_REPLY:
+  - exit|ROUTE_EARLY_REJECT:
+sip_in:
+  - '^INVITE'
+  - 'Contact: sip:testuser2@'
+  - 'CSeq: 2 INVITE'
+  - 'Max-Forwards: 16'
+  - 'Content-Type: application/sdp'
+  - 'Proxy-Authorization: Digest username="testuser2"'
+sip_out:
+  - [
+      '^SIP/2.0 100 Trying',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@'
+    ]
+  - [
+      '^SIP/2.0 101 Connecting',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@'
+    ]
+  - [
+      '^SIP/2.0 480 Offline',
+      'CSeq: 2 INVITE',
+      'From: <sip:testuser2@'
+    ]
diff --git a/scenarios/invite/sipp_scenario.xml b/scenarios/invite/sipp_scenario.xml
new file mode 100644
index 00000000..9fc2b537
--- /dev/null
+++ b/scenarios/invite/sipp_scenario.xml
@@ -0,0 +1,144 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+
+<scenario name="Sipwise NGCP Benchmark UAC Caller">
+  <send retrans="500" start_rtd="1" start_rtd="2">
+    <![CDATA[
+
+      INVITE sip:[field0 file="callee.csv"]@[field3 file="callee.csv"] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="caller.csv"]@[field2 file="caller.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>
+      Call-ID: [call_id]
+      CSeq: 1 INVITE
+      Contact: sip:[field0 file="caller.csv"]@[local_ip]:[local_port]
+      Max-Forwards: 70
+      Content-Type: application/sdp
+      Content-Length: [len]
+
+      v=0
+      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
+      s=-
+      c=IN IP[media_ip_type] [media_ip]
+      t=0 0
+      m=audio [media_port] RTP/AVP 8
+      a=rtpmap:8 PCMA/8000
+      a=ptime:50
+
+    ]]>
+  </send>
+
+  <recv response="100" rtd="1" optional="true">
+  </recv>
+  
+  <recv response="407" rtd="2" auth="true"/>
+  
+  <send>
+    <![CDATA[
+
+      ACK sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]:[remote_port] SIP/2.0
+      [last_Via:]
+      From: <sip:[field0 file="caller.csv"]@[field2 file="caller.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>[peer_tag_param]
+      Call-ID: [call_id]
+      CSeq: 1 ACK
+      Contact: sip:[field0 file="caller.csv"]@[local_ip]:[local_port]
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <send retrans="500" start_rtd="3">
+    <![CDATA[
+
+      INVITE sip:[field0 file="callee.csv"]@[field3 file="callee.csv"] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="caller.csv"]@[field2 file="caller.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>
+      Call-ID: [call_id]
+      CSeq: 2 INVITE
+      Contact: sip:[field0 file="caller.csv"]@[local_ip]:[local_port]
+      Max-Forwards: 70
+      [field1 file="caller.csv"]
+      Content-Type: application/sdp
+      Content-Length: [len]
+
+      v=0
+      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
+      s=-
+      c=IN IP[media_ip_type] [media_ip]
+      t=0 0
+      m=audio [media_port] RTP/AVP 8
+      a=rtpmap:8 PCMA/8000
+      a=ptime:50
+
+    ]]>
+  </send>
+
+  <recv response="100" optional="true">
+  </recv>
+
+  <recv response="180" optional="true">
+  </recv>
+
+  <recv response="183" optional="true">
+  </recv>
+
+  <recv response="200" rrs="true" rtd="3">
+  </recv>
+
+  <send>
+    <![CDATA[
+
+      ACK [next_url] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="caller.csv"]@[field2 file="caller.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>[peer_tag_param]
+      Call-ID: [call_id]
+      [routes]
+      CSeq: 2 ACK
+      Contact: sip:[field0 file="caller.csv"]@[local_ip]:[local_port]
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <pause milliseconds="500"/>
+  <nop>
+    <action>
+      <exec play_pcap_audio="scenarios/media181sec.pcap"/>
+    </action>
+  </nop>
+  
+  <pause milliseconds="1000"/> 
+
+  <send retrans="500" start_rtd="4">
+    <![CDATA[
+
+      BYE [next_url] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="caller.csv"]@[field2 file="caller.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>[peer_tag_param]
+      Call-ID: [call_id]
+      CSeq: 3 BYE
+      Contact: sip:[field0 file="caller.csv"]@[local_ip]:[local_port]
+      [routes]
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+  
+  <recv response="100" optional="true">
+  </recv>
+
+  <recv response="200" crlf="true" rtd="4">
+  </recv>
+
+  <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200, 500, 1000"/>
+
+<!-- <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/> >
+
+</scenario>
+
diff --git a/scenarios/invite/sipp_scenario_responder.xml b/scenarios/invite/sipp_scenario_responder.xml
new file mode 100644
index 00000000..fddb42fa
--- /dev/null
+++ b/scenarios/invite/sipp_scenario_responder.xml
@@ -0,0 +1,103 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<scenario name="Sipwise NGCP Benchmark UAS Responder">
+
+  <recv request="INVITE" crlf="true" rtd="true">
+  </recv>
+
+  <send>
+    <![CDATA[
+
+      SIP/2.0 180 Ringing
+      [last_Via:]
+      [last_From:]
+      [last_To:];tag=[pid]SIPpTag01[call_number]
+      [last_Call-ID:]
+      [last_CSeq:]
+      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <pause milliseconds="500"/> 
+
+  <send retrans="500">
+    <![CDATA[
+
+      SIP/2.0 200 OK
+      [last_Via:]
+      [last_From:]
+      [last_To:];tag=[pid]SIPpTag01[call_number]
+      [last_Call-ID:]
+      [last_CSeq:]
+      [last_Record-Route:]
+      [last_Route:]
+      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
+      Content-Type: application/sdp
+      Content-Length: [len]
+
+      v=0
+      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
+      s=-
+      c=IN IP[media_ip_type] [media_ip]
+      t=0 0
+      m=audio [media_port] RTP/AVP 8
+      a=rtpmap:8 PCMA/8000
+      a=ptime:50
+
+    ]]>
+  </send>
+
+  <recv request="ACK"
+        crlf="true">
+  </recv>
+
+  <recv request="BYE">
+  </recv>
+
+  <send>
+    <![CDATA[
+
+      SIP/2.0 200 OK
+      [last_Via:]
+      [last_From:]
+      [last_To:]
+      [last_Call-ID:]
+      [last_CSeq:]
+      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <send>
+    <![CDATA[
+
+      REGISTER sip:[field0 file="callee.csv"]@[field3 file="callee.csv"] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>
+      Call-ID: [call_id]
+      CSeq: 2 REGISTER
+      [field2 file="callee.csv"]
+      Contact: sip:[field0 file="callee.csv"]@[local_ip]:[local_port]
+      Expires: 0
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+  
+  <recv response="100" optional="true">
+  </recv>
+
+  <recv response="200">
+  </recv>
+
+  <timewait milliseconds="4000"/>
+  <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
+  <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
+
+</scenario>
+
diff --git a/scenarios/invite/sipp_scenario_responder_reg.xml b/scenarios/invite/sipp_scenario_responder_reg.xml
new file mode 100644
index 00000000..101bfbf3
--- /dev/null
+++ b/scenarios/invite/sipp_scenario_responder_reg.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE scenario SYSTEM "sipp.dtd">
+
+<scenario name="Sipwise NGCP Benchmark UAS Registration">
+  <send>
+    <![CDATA[
+
+      REGISTER sip:[field0 file="callee.csv"]@[field3 file="callee.csv"] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>
+      Call-ID: [call_id]
+      CSeq: 1 REGISTER
+      Contact: sip:[field0 file="callee.csv"]@[local_ip]:[local_port]
+      Expires: 600
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <recv response="100"
+        optional="true">
+  </recv>
+  
+  <recv response="401" auth="true"/>
+  
+  <send>
+    <![CDATA[
+
+      REGISTER sip:[field0 file="callee.csv"]@[field3 file="callee.csv"] SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>;tag=[pid]SIPpTag00[call_number]
+      To: <sip:[field0 file="callee.csv"]@[field3 file="callee.csv"]>
+      Call-ID: [call_id]
+      CSeq: 2 REGISTER
+      [field2 file="callee.csv"]
+      Contact: sip:[field0 file="callee.csv"]@[local_ip]:[local_port]
+      Expires: 600
+      Max-Forwards: 70
+      Content-Length: 0
+
+    ]]>
+  </send>
+  
+  <recv response="100" optional="true">
+  </recv>
+
+  <recv response="200">
+  </recv>
+
+  <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
+
+</scenario>
+
diff --git a/scenarios/media181sec.pcap b/scenarios/media181sec.pcap
new file mode 100644
index 00000000..aa154053
Binary files /dev/null and b/scenarios/media181sec.pcap differ
diff --git a/sipp.sh b/sipp.sh
index 884249fa..ed60b9ce 100755
--- a/sipp.sh
+++ b/sipp.sh
@@ -42,11 +42,11 @@ set_domain 1
 if [ -z ${RESP} ]; then
   PORT="50603"
   sipp -inf ${BASE_DIR}/../callee.csv -inf ${BASE_DIR}/../caller.csv -sf $1 -i $IP \
-    -nd -t ul -p $PORT $IP -m 1 -timeout 15 -timeout_error -trace_err
+    -nd -t ul -p $PORT $IP -m 1 -mp 6003 -timeout 10 -timeout_error -trace_err
 else
   PORT="50602"
-  sipp -inf ${BASE_DIR}/../callee.csv -sf $1 -i $IP \
-    -nd -t ul -p $PORT $IP -m 1 -timeout 14 -timeout_error -trace_err
+  sipp -bg -inf ${BASE_DIR}/../callee.csv -sf $1 -i $IP \
+    -nd -t ul -p $PORT $IP -m 1 -rtp_echo -mp 6002 -timeout 25 -timeout_error -trace_err
 fi
 
 set_domain 0