Hello Daniel/Stoyan

Thanks for your reply, here is a full sip trace from the first INVITE message to the last acknowledge which is sent to PGW.



192.168.10.189 ==> 81.21.38.34

INVITE sip:94294294@81.21.38.34 SIP/2.0
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK7ddbce3f;rport
Max-Forwards: 70
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>
Contact: <sip:22498045@192.168.10.189:5060>
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.8.1(1.8.21.0)
Date: Thu, 06 Jun 2013 09:40:42 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 265

v=0
o=root 1692903116 1692903116 IN IP4 192.168.10.189
s=Asterisk PBX 1.8.21.0
c=IN IP4 192.168.10.189
t=0 0
m=audio 12584 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv



81.21.38.34 ==> 81.21.38.5

INVITE sip:3005A94294294@81.21.38.5 SIP/2.0
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK7ddbce3f;rport=5060
Max-Forwards: 16
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>
Contact: <sip:22498045@192.168.10.189:5060>
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.8.1(1.8.21.0)
Date: Thu, 06 Jun 2013 09:40:42 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 277
P-hint: outbound

v=0
o=root 1692903116 1692903116 IN IP4 81.21.38.34
s=Asterisk PBX 1.8.21.0
c=IN IP4 81.21.38.34
t=0 0
m=audio 38796 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv
a=nortpproxy:yes



81.21.38.5 ==> 81.21.38.34


INVITE sip:7000A94294294@81.21.38.34:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 81.21.38.5:5060 ;branch=z9hG4bKterm-1105c-22498045-94294294-67117
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK7ddbce3f;rport=5060
Max-Forwards: 15
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>
Contact: <sip:22498045@192.168.10.189:5060>
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.8.1(1.8.21.0)
Date: Thu, 06 Jun 2013 09:40:42 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 277
P-hint: outbound

v=0
o=root 1692903116 1692903116 IN IP4 81.21.38.34
s=Asterisk PBX 1.8.21.0
c=IN IP4 81.21.38.34
t=0 0
m=audio 38796 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv
a=nortpproxy:yes





81.21.38.34==>81.21.38.55

INVITE sip:94294294@81.21.38.55 SIP/2.0
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af>
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.ef179a29b1792073be0e0618cf49ac25.0
Via: SIP/2.0/UDP 81.21.38.5:5060 ;branch=z9hG4bKterm-1105c-22498045-94294294-67117
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK7ddbce3f;rport=5060
Max-Forwards: 14
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>
Contact: <sip:22498045@192.168.10.189:5060>
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.8.1(1.8.21.0)
Date: Thu, 06 Jun 2013 09:40:42 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 277
P-hint: outbound
P-hint: outbound

v=0
o=root 1692903116 1692903116 IN IP4 81.21.38.34
s=Asterisk PBX 1.8.21.0
c=IN IP4 81.21.38.34
t=0 0
m=audio 38796 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv
a=nortpproxy:yes




81.21.38.55 ==> 81.21.38.34
 
SIP/2.0 200 OK
From: "22498045"<sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.ef179a29b1792073be0e0618cf49ac25.0
Via: SIP/2.0/UDP 81.21.38.5:5060;branch=z9hG4bKterm-1105c-22498045-94294294-67117
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;rport=5060;branch=z9hG4bK7ddbce3f
Supported: replaces
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af>
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Contact: <sip:94294294@81.21.38.55>
Allow: INVITE, CANCEL, ACK, BYE, OPTIONS, INFO, REFER, NOTIFY, UPDATE
Content-Type: application/sdp
Content-Length: 242

v=0
o=Dialogic_SIP_CCLIB 64680888 64680889 IN IP4 81.21.38.55
s=Dialogic_SIP_CCLIB
c=IN IP4 81.21.38.55
t=0 0
m=audio 49156 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=sendrecv
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15



81.21.38.34 ==> 81.21.38.5

SIP/2.0 200 OK
From: "22498045"<sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
Via: SIP/2.0/UDP 81.21.38.5:5060;branch=z9hG4bKterm-1105c-22498045-94294294-67117
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;rport=5060;branch=z9hG4bK7ddbce3f
Supported: replaces
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af>
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Contact: <sip:94294294@81.21.38.55>
Allow: INVITE, CANCEL, ACK, BYE, OPTIONS, INFO, REFER, NOTIFY, UPDATE
Content-Type: application/sdp
Content-Length: 260

v=0
o=Dialogic_SIP_CCLIB 64680888 64680889 IN IP4 81.21.38.34
s=Dialogic_SIP_CCLIB
c=IN IP4 81.21.38.34
t=0 0
m=audio 47332 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=sendrecv
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=nortpproxy:yes



81.21.38.5 ==> 81.21.38.34

SIP/2.0 200 OK
From: "22498045"<sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.4dbc7d09c7e34a53fab5087a11e6f210.0
Via: SIP/2.0/UDP 192.168.10.189:5060;rport=5060;branch=z9hG4bK7ddbce3f
Supported: replaces
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af>
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Contact: <sip:94294294@81.21.38.55>
Allow: INVITE, CANCEL, ACK, BYE, OPTIONS, INFO, REFER, NOTIFY, UPDATE
Content-Type: application/sdp
Content-Length: 260

v=0
o=Dialogic_SIP_CCLIB 64680888 64680889 IN IP4 81.21.38.34
s=Dialogic_SIP_CCLIB
c=IN IP4 81.21.38.34
t=0 0
m=audio 47332 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=sendrecv
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=nortpproxy:yes




81.21.38.34 ==> 192.168.10.189


SIP/2.0 200 OK
From: "22498045"<sip:22498045@192.168.10.189>;tag=as181922af
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060
CSeq: 102 INVITE
Via: SIP/2.0/UDP 192.168.10.189:5060;rport=5060;branch=z9hG4bK7ddbce3f
Supported: replaces
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af>
Record-Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>
Record-Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>
Contact: <sip:94294294@81.21.38.55>
Allow: INVITE, CANCEL, ACK, BYE, OPTIONS, INFO, REFER, NOTIFY, UPDATE
Content-Type: application/sdp
Content-Length: 260

v=0
o=Dialogic_SIP_CCLIB 64680888 64680889 IN IP4 81.21.38.34
s=Dialogic_SIP_CCLIB
c=IN IP4 81.21.38.34
t=0 0
m=audio 47332 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=sendrecv
a=ptime:20
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=nortpproxy:yes



#
U 192.168.10.189:5060 -> 81.21.38.34:5060

ACK sip:94294294@81.21.38.55 SIP/2.0*
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK76f8f103;rport*
Route: <sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641>,<sip:94294294@81.21.38.5;pgw-call=call-2aa6>,<sip:81.21.38.34;lr=on;ftag=as181922af>*
Max-Forwards: 70*
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af*
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096*
Contact: <sip:22498045@192.168.10.189:5060>*
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*
CSeq: 102 ACK*
User-Agent: FPBX-2.8.1(1.8.21.0)*
Content-Length: 0*


81.21.38.34:5060 -> 81.21.38.5:5060

ACK sip:94294294@81.21.38.55 SIP/2.0*
Via: SIP/2.0/UDP 81.21.38.34;branch=z9hG4bKc526.9402c2edbc3ef96d9e405408364506a9.0*
Via: SIP/2.0/UDP 192.168.10.189:5060;branch=z9hG4bK76f8f103;rport=5060*
Route: <sip:94294294@81.21.38.5;pgw-call=call-2aa6>,<sip:81.21.38.34;lr=on;ftag=as181922af>*
Max-Forwards: 16*
From: "22498045" <sip:22498045@192.168.10.189>;tag=as181922af*
To: <sip:94294294@81.21.38.34>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096*
Contact: <sip:22498045@192.168.10.189:5060>*
Call-ID: 696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*
CSeq: 102 ACK*
User-Agent: FPBX-2.8.1(1.8.21.0)*
Content-Length: 0*


Regards
Phillip