Hola. Tengo una instalación con FXO Grandstream y Openser con varios teléfonos IP registrados, y el problema que tengo es que las llamadas que entran a través del FXO, al transferirlas entre teléfonos IP se cortan. No se pueden transferir llamadas externas entre teléfonos IP. Sin embargo con las llamadas internas entre los propios teléfonos IP no hay ningún problema para transferirlas. Este problema ha surgido a raíz de cambiar el modo de funcionamiento del FXO para que las llamadas entrantes suenen directamente en los teléfonos IP. Con la configuración anterior según la cual cuando entraba la llamada en el FXO era necesario una segunda marcación para seleccionar la extensión IP, la transferencia de llamadas funcionaba correctamente. ¿Me puede por favor echar alguien una mano a identificar la causa del corte en las transferencias? Muchas gracias de antemano. Adjunto traza ngrep, de una llamada externa entrante a la extensión 43 a través del canal FXO 9873, y el intento de transferencia de esta llamada desde la extensión 43 hacia la extensión 42. La traza a partir de haberse atendido ya la llamada externa en la extensión 42. # U 2008/09/19 14:30:19.983100 192.168.20.13:5060 -> 192.168.20.1:5060 INVITE sip:42@192.168.20.1:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060> Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 70 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 313 v=0 o=43 32364100 22806179 IN IP4 192.168.20.13 s=A conversation c=IN IP4 192.168.20.13 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:19.984128 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060> Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Server: OpenSer (1.1.1-notls (i386/linux)) Content-Length: 0 Warning: 392 192.168.20.1:5060 "Noisy feedback tells: pid=1627 req_src_ip=192.168.20.13 req_src_port=5060 in_uri=sip:42@192.168.20.1:5060 out_uri=sip:42@192.168.20.12:5060 via_cnt==1" # U 2008/09/19 14:30:19.984308 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060> Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 313 P-hint: usrloc applied v=0 o=43 32364100 22806179 IN IP4 192.168.20.13 s=A conversation c=IN IP4 192.168.20.13 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:20.202511 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060> Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 313 P-hint: usrloc applied v=0 o=43 32364100 22806179 IN IP4 192.168.20.13 s=A conversation c=IN IP4 192.168.20.13 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:20.205681 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060> Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Content-Length: 0 # U 2008/09/19 14:30:20.226804 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Content-Length: 0 # U 2008/09/19 14:30:20.227247 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Content-Length: 0 # U 2008/09/19 14:30:20.298327 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Content-Length: 0 # U 2008/09/19 14:30:20.299019 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Content-Length: 0 # U 2008/09/19 14:30:23.142771 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 13188124 91532501 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:23.143540 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK26887157682213617086;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 13188124 91532501 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:23.612392 192.168.20.13:5060 -> 192.168.20.1:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2420243251744332345 Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:23.613303 192.168.20.1:5060 -> 192.168.20.12:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.d21cd317.2 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2420243251744332345 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:27.150694 192.168.20.13:5060 -> 192.168.20.1:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 70 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 307 v=0 o=43 32364100 22806180 IN IP4 192.168.20.13 s=A conversation c=IN IP4 0.0.0.0 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendonly # U 2008/09/19 14:30:27.151252 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Server: OpenSer (1.1.1-notls (i386/linux)) Content-Length: 0 Warning: 392 192.168.20.1:5060 "Noisy feedback tells: pid=1628 req_src_ip=192.168.20.13 req_src_port=5060 in_uri=sip:42@192.168.20.12:5060 out_uri=sip:42@192.168.20.12:5060 via_cnt==1" # U 2008/09/19 14:30:27.151423 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 307 P-hint: rr-enforced v=0 o=43 32364100 22806180 IN IP4 192.168.20.13 s=A conversation c=IN IP4 0.0.0.0 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendonly # U 2008/09/19 14:30:27.209761 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 Supported: replaces User-Agent: Voip Phone 1.0 Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, SUBSCRIBE, PRACK, UPDATE Content-Type: application/sdp Content-Length: 307 P-hint: rr-enforced v=0 o=43 32364100 22806180 IN IP4 192.168.20.13 s=A conversation c=IN IP4 0.0.0.0 t=0 0 m=audio 10320 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendonly # U 2008/09/19 14:30:27.406839 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 22322225 14523311 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=recvonly # U 2008/09/19 14:30:27.407193 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 22322225 14523311 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=recvonly # U 2008/09/19 14:30:27.491887 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 22322225 14523311 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=recvonly # U 2008/09/19 14:30:27.492279 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2273717731513410102;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 334 v=0 o=42 22322225 14523311 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10176 RTP/AVP 8 4 18 0 9 101 a=rtpmap:8 PCMA/8000 a=rtpmap:4 G723/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/16000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=recvonly # U 2008/09/19 14:30:27.539823 192.168.20.13:5060 -> 192.168.20.1:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK392818939904813707 Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:27.540247 192.168.20.1:5060 -> 192.168.20.12:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.2 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK392818939904813707 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:27.709861 192.168.20.13:5060 -> 192.168.20.1:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK392818939904813707 Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:27.710267 192.168.20.1:5060 -> 192.168.20.12:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=1176531356> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK8676.852fdee7.2 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK392818939904813707 From: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 To: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 2 ACK Contact: <sip:43@192.168.20.13:5060> Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:27.762162 192.168.20.13:5060 -> 192.168.20.1:5060 REFER sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK183391788069093717;rport Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 2 REFER Contact: <sip:43@192.168.20.13:5060> refer-to: <sip:42@192.168.20.1:5060?Replaces=66593269826955-13455355112414%40192.168.20.13%3Bto-tag%3D3026415234%3Bfrom-tag%3D1176531356> referred-by: <sip:43@192.168.20.1> Max-Forwards: 70 User-Agent: Voip Phone 1.0 Event: refer Content-Length: 0 # U 2008/09/19 14:30:27.762693 192.168.20.1:5060 -> 192.168.10.2:5066 REFER sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK6263.9c369da.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK183391788069093717;rport=5060 From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 2 REFER Contact: <sip:43@192.168.20.13:5060> refer-to: <sip:42@192.168.20.1:5060?Replaces=66593269826955-13455355112414%40192.168.20.13%3Bto-tag%3D3026415234%3Bfrom-tag%3D1176531356> referred-by: <sip:43@192.168.20.1> Max-Forwards: 69 User-Agent: Voip Phone 1.0 Event: refer Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:27.859294 192.168.10.2:5066 -> 192.168.20.1:5060 SIP/2.0 202 Accepted Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK6263.9c369da.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK183391788069093717;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 2 REFER User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Contact: <sip:9873@192.168.10.2:5066;user=phone> Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Supported: replaces, timer, 100rel, path Content-Length: 0 # U 2008/09/19 14:30:27.859610 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 202 Accepted Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK183391788069093717;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 2 REFER User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Contact: <sip:9873@192.168.10.2:5066;user=phone> Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Supported: replaces, timer, 100rel, path Content-Length: 0 # U 2008/09/19 14:30:27.880527 192.168.10.2:5066 -> 192.168.20.1:5060 NOTIFY sip:43@192.168.20.13:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK18161fe54437b433 Route: <sip:192.168.20.1;lr=on;ftag=3d05668484314852> From: "unknown"<sip:unknown@192.168.20.1>;tag=3d05668484314852 To: <sip:43@192.168.20.1>;tag=2478014423 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 10757 NOTIFY User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Max-Forwards: 70 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Event: refer Subscription-State: active Content-Type: message/sipfrag;version=2.0 Content-Length: 20 SIP/2.0 100 Trying # U 2008/09/19 14:30:27.881054 192.168.20.1:5060 -> 192.168.20.13:5060 NOTIFY sip:43@192.168.20.13:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=3d05668484314852> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKcd3.d84f00f3.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK18161fe54437b433 From: "unknown"<sip:unknown@192.168.20.1>;tag=3d05668484314852 To: <sip:43@192.168.20.1>;tag=2478014423 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 10757 NOTIFY User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Max-Forwards: 69 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Event: refer Subscription-State: active Content-Type: message/sipfrag;version=2.0 Content-Length: 20 P-hint: rr-enforced SIP/2.0 100 Trying # U 2008/09/19 14:30:27.912377 192.168.10.2:5066 -> 192.168.20.1:5060 INVITE sip:42@192.168.20.1:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060> Contact: <sip:9873@192.168.10.2:5066;user=phone> Replaces: 66593269826955-13455355112414(a)192.168.20.13;to-tag=3026415234;from-tag=1176531356 Supported: replaces, timer, path Referred-By: <sip:43@192.168.20.1> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 70 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Type: application/sdp Content-Length: 235 v=0 o=9873 8007 8000 IN IP4 192.168.10.2 s=SIP Call c=IN IP4 192.168.10.2 t=0 0 m=audio 5032 RTP/AVP 8 0 101 a=sendrecv a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=ptime:10 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-11 # U 2008/09/19 14:30:27.912889 192.168.20.1:5060 -> 192.168.10.2:5066 SIP/2.0 100 trying -- your call is important to us Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Server: OpenSer (1.1.1-notls (i386/linux)) Content-Length: 0 Warning: 392 192.168.20.1:5060 "Noisy feedback tells: pid=1626 req_src_ip=192.168.10.2 req_src_port=5066 in_uri=sip:42@192.168.20.1:5060 out_uri=sip:42@192.168.20.12:5060 via_cnt==1" # U 2008/09/19 14:30:27.913010 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060> Contact: <sip:9873@192.168.10.2:5066;user=phone> Replaces: 66593269826955-13455355112414(a)192.168.20.13;to-tag=3026415234;from-tag=1176531356 Supported: replaces, timer, path Referred-By: <sip:43@192.168.20.1> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 69 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Type: application/sdp Content-Length: 235 P-hint: usrloc applied v=0 o=9873 8007 8000 IN IP4 192.168.10.2 s=SIP Call c=IN IP4 192.168.10.2 t=0 0 m=audio 5032 RTP/AVP 8 0 101 a=sendrecv a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=ptime:10 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-11 # U 2008/09/19 14:30:28.140252 192.168.20.13:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKcd3.d84f00f3.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK18161fe54437b433 Record-Route: <sip:192.168.20.1;lr=on;ftag=3d05668484314852> From: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 To: <sip:43@192.168.20.1>;tag=2478014423 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 10757 NOTIFY Contact: <sip:43@192.168.20.13:5060> Content-Length: 0 # U 2008/09/19 14:30:28.140839 192.168.20.1:5060 -> 192.168.10.2:5066 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK18161fe54437b433 Record-Route: <sip:192.168.20.1;lr=on;ftag=3d05668484314852> From: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 To: <sip:43@192.168.20.1>;tag=2478014423 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 10757 NOTIFY Contact: <sip:43@192.168.20.13:5060> Content-Length: 0 # U 2008/09/19 14:30:28.193697 192.168.20.13:5060 -> 192.168.20.1:5060 BYE sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:28.194430 192.168.20.1:5060 -> 192.168.10.2:5066 BYE sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK7263.af092c33.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport=5060 From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:28.210618 192.168.20.1:5060 -> 192.168.20.12:5060 INVITE sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060> Contact: <sip:9873@192.168.10.2:5066;user=phone> Replaces: 66593269826955-13455355112414(a)192.168.20.13;to-tag=3026415234;from-tag=1176531356 Supported: replaces, timer, path Referred-By: <sip:43@192.168.20.1> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 69 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Type: application/sdp Content-Length: 235 P-hint: usrloc applied v=0 o=9873 8007 8000 IN IP4 192.168.10.2 s=SIP Call c=IN IP4 192.168.10.2 t=0 0 m=audio 5032 RTP/AVP 8 0 101 a=sendrecv a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=ptime:10 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-11 # U 2008/09/19 14:30:28.211176 192.168.20.1:5060 -> 192.168.10.2:5066 BYE sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK7263.af092c33.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport=5060 From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:28.286970 192.168.10.2:5066 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK7263.af092c33.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Contact: <sip:9873@192.168.10.2:5066;user=phone> Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Supported: replaces, timer, 100rel, path Content-Length: 0 # U 2008/09/19 14:30:28.287776 192.168.20.1:5060 -> 192.168.20.13:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE User-Agent: Grandstream GXW4108 (HW 0001, Ch:6) 1.0.1.2 Contact: <sip:9873@192.168.10.2:5066;user=phone> Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Supported: replaces, timer, 100rel, path Content-Length: 0 # U 2008/09/19 14:30:28.326083 192.168.10.2:5066 -> 192.168.20.1:5060 SIP/2.0 481 No Such Call Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK7263.af092c33.0 Via: SIP/2.0/UDP 192.168.20.13:5060;branch=z9hG4bK2144212896305094925;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 3 BYE User-Agent: Grandstream GXW4108 (HW 0001, Ch:0) 1.0.1.2 Content-Length: 0 # U 2008/09/19 14:30:28.364322 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Content-Length: 0 # U 2008/09/19 14:30:28.393542 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 238 v=0 o=42 42889345 25269231 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10178 RTP/AVP 8 0 101 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:28.394149 192.168.20.1:5060 -> 192.168.10.2:5066 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 238 v=0 o=42 42889345 25269231 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10178 RTP/AVP 8 0 101 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:28.468273 192.168.20.12:5060 -> 192.168.20.1:5060 BYE sip:43@192.168.20.13:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK17746209931754612026;rport Route: <sip:192.168.20.1;lr=on;ftag=1176531356> From: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 To: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 BYE Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:28.469112 192.168.20.1:5060 -> 192.168.20.13:5060 BYE sip:43@192.168.20.13:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=3026415234> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.e21cd317.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK17746209931754612026;rport=5060 From: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 To: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 BYE Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:28.500801 192.168.10.2:5066 -> 192.168.20.1:5060 CANCEL sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 CANCEL User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 70 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Length: 0 # U 2008/09/19 14:30:28.501604 192.168.20.1:5060 -> 192.168.10.2:5066 SIP/2.0 200 ok -- no more pending branches Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 CANCEL Server: OpenSer (1.1.1-notls (i386/linux)) Content-Length: 0 Warning: 392 192.168.20.1:5060 "Noisy feedback tells: pid=1627 req_src_ip=192.168.10.2 req_src_port=5066 in_uri=sip:42@192.168.20.12:5060 out_uri=sip:42@192.168.20.12:5060 via_cnt==1" # U 2008/09/19 14:30:28.506648 192.168.20.12:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 238 v=0 o=42 42889345 25269231 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10178 RTP/AVP 8 0 101 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:28.507237 192.168.20.1:5060 -> 192.168.10.2:5066 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK2b17d6e34a56abe6 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 INVITE Contact: <sip:42@192.168.20.12:5060> Supported: replaces Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE Content-Type: application/sdp Content-Length: 238 v=0 o=42 42889345 25269231 IN IP4 192.168.20.12 s=A conversation c=IN IP4 192.168.20.12 t=0 0 m=audio 10178 RTP/AVP 8 0 101 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=sendrecv # U 2008/09/19 14:30:28.521309 192.168.10.2:5066 -> 192.168.20.1:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK8497d3318fc0bc45 Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 ACK User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 70 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Length: 0 # U 2008/09/19 14:30:28.522076 192.168.20.1:5060 -> 192.168.20.12:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.2 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bK8497d3318fc0bc45 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 ACK User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 69 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:28.638974 192.168.20.13:5060 -> 192.168.20.1:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKb676.e21cd317.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK17746209931754612026;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=3026415234> From: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 To: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 BYE Contact: <sip:43@192.168.20.13:5060> Content-Length: 0 # U 2008/09/19 14:30:28.639596 192.168.20.1:5060 -> 192.168.20.12:5060 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK17746209931754612026;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=3026415234> From: 42 <sip:42@192.168.20.1:5060>;tag=3026415234 To: usuario43 <sip:43@192.168.20.1:5060>;tag=1176531356 Call-ID: 66593269826955-13455355112414(a)192.168.20.13 CSeq: 1 BYE Contact: <sip:43@192.168.20.13:5060> Content-Length: 0 # U 2008/09/19 14:30:28.664921 192.168.10.2:5066 -> 192.168.20.1:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bKf6d0f6c1ee93df11 Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 ACK User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 70 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Length: 0 # U 2008/09/19 14:30:28.665670 192.168.20.1:5060 -> 192.168.20.12:5060 ACK sip:42@192.168.20.12:5060 SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bKed4e.8b482304.2 Via: SIP/2.0/UDP 192.168.10.2:5066;branch=z9hG4bKf6d0f6c1ee93df11 From: "unknown"<sip:unknown@192.168.20.1>;tag=10263706333383c3 To: <sip:42@192.168.20.1:5060>;tag=983812395 Contact: <sip:9873@192.168.10.2:5066;user=phone> Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 21300 ACK User-Agent: Grandstream GXW4108 (HW 0001, Ch:7) 1.0.1.2 Max-Forwards: 69 Allow: INVITE,ACK,CANCEL,BYE,NOTIFY,REFER,OPTIONS,INFO,SUBSCRIBE,UPDATE,PRACK Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:41.078326 192.168.20.12:5060 -> 192.168.20.1:5060 BYE sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK1309813609243777314;rport Route: <sip:192.168.20.1;lr=on;ftag=10263706333383c3> From: <sip:42@192.168.20.1:5060>;tag=983812395 To: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 1 BYE Max-Forwards: 70 User-Agent: Voip Phone 1.0 Content-Length: 0 # U 2008/09/19 14:30:41.078856 192.168.20.1:5060 -> 192.168.10.2:5066 BYE sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Record-Route: <sip:192.168.20.1;lr=on;ftag=983812395> Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK48e9.dc5f3ea5.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK1309813609243777314;rport=5060 From: <sip:42@192.168.20.1:5060>;tag=983812395 To: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 1 BYE Max-Forwards: 69 User-Agent: Voip Phone 1.0 Content-Length: 0 P-hint: rr-enforced # U 2008/09/19 14:30:41.183529 192.168.10.2:5066 -> 192.168.20.1:5060 SIP/2.0 481 No Such Call Via: SIP/2.0/UDP 192.168.20.1;branch=z9hG4bK48e9.dc5f3ea5.0 Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK1309813609243777314;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=983812395> From: <sip:42@192.168.20.1:5060>;tag=983812395 To: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 1 BYE User-Agent: Grandstream GXW4108 (HW 0001, Ch:0) 1.0.1.2 Content-Length: 0 # U 2008/09/19 14:30:41.183840 192.168.20.1:5060 -> 192.168.20.12:5060 SIP/2.0 481 No Such Call Via: SIP/2.0/UDP 192.168.20.12:5060;branch=z9hG4bK1309813609243777314;rport=5060 Record-Route: <sip:192.168.20.1;lr=on;ftag=983812395> From: <sip:42@192.168.20.1:5060>;tag=983812395 To: unknown <sip:unknown@192.168.20.1>;tag=10263706333383c3 Call-ID: e400cdc544f16303(a)192.168.10.2 CSeq: 1 BYE User-Agent: Grandstream GXW4108 (HW 0001, Ch:0) 1.0.1.2 Content-Length: 0 _______________________________________________ Users-es mailing list Users-es(a)lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users-es

U 2008/09/19 14:30:27.762162 192.168.20.13:5060 ->

REFER sip:9873@192.168.10.2:5066;user=phone SIP/2.0 Via: SIP/2.0/UDP

Route: <sip:192.168.20.1;lr=on;ftag=2478014423> From: <sip:43@192.168.20.1>;tag=2478014423 To: unknown <sip:unknown@192.168.20.1>;tag=3d05668484314852 Call-ID: 4263e231cf65ba11(a)192.168.10.2 CSeq: 2 REFER Contact: <sip:43@192.168.20.13:5060> refer-to:

U 2008/09/19 14:30:27.859294 192.168.10.2:5066 ->

SIP/2.0 202 Accepted

U 2008/09/19 14:30:27.859610 192.168.20.1:5060 ->

SIP/2.0 202 Accepted

El 2/10/08, Jose Fernandez &lt;jose.fernandez(a)daikon.es&gt; escribió: Hola Jose, el problema no está bien definido y tampoco es plan de estudiar un trace SIP tan largo para deducir de qué va todo esto. Comentas que antes tenías que hacer una "segunda marcación", eso tiene pinta de que contestaba una especie de centralita y por DTMF marcábais la extensión final. Eso no explica ni arregla nada, era un escenario completamente diferente y dejar de usarlo no tiene como consecuencia lógica que dejen de funcionar las transferencias. Es decir, olvida el escenario anterior porque no ayuda en nada a describir el problema actual (antes funcionaba, pues muy bien) e intenta averiguar un poco más qué está pasando a nivel SIP en tu nuevo entorno (no vale con pegar toda la traza SIP). Si consigues acotar un poco más el problema yo estaré muy dispuesto a echarte una mano. Saludos.

El Jueves, 2 de Octubre de 2008, Jose Fernandez escribió: Hola, realmente adjuntar la traza SIP es perfecto (en mi opinión), lo que echaba en falta era un poco más de explicación previa, para saber qué buscar en la traza SIP ;) Pero ahora ya está más o menos claro. He notado que hay retransmisiones (INVITE's repetidos que llegan al UAS). Esto provoca que al aceptarse uno el proxy envíe un CANCEL para cancelar el otro, el UAS recive dicho CANCEL y cancela la primera llamada (aunque no debería pues ya fue contestada) y envía un BYE (no debería). Una pregunta, ¿usas "t_relay" en el script de OpenSer? Tienes que usar "t_relay" para evitar las retransmisiones, o sea, que si el UAC envía un INVITE, llega a OpenSer, pasa un poco de tiempo sin recibir respuesta y el UAC repite el INVITE, entonces OpenSer debe absorver dicho INVITE repetido, pero para ello debe haber creado una transacción. Al rutar un mensaje con "t_relay" se crea la transacción, pero también la puedes hacer antes ejectutando "t_newtran" cuando empiezas a procesar el mensaje. La secuencia es más o menos correcta, yo creo que el UAS se comporta mal al recibir 2 INVITE's iguales (retransmisiones) y un CANCEL. Yo lo que te recomiendo es que te asegures de que OpenSer absorbe las retransmisiones, es decir, el INVITE puede llegar varias veces a OpenSer, pero sólo debe salir una vez de OpenSer y absorber las repeticiones. Compruébalo haciendo más trazas SIP y comparando el "branch" del Via. Y otra cosa, prueba a sustituir el teléfono 42 por otro modelo o softphone. Si puedes pon un Twinkle que eso no falla ;)