Hi, I'm testing Nikotel with Asterisk. Sound quality is Ok, but I can?t manage to have a call longer then 1 minute After 1 minute or so, my * exchanges some SIP messages with Nikotel and the call ends with maximum retries error. Debugging the SIP messages, I see 2 IP?s in the VIA header, the calamar0.nikotel.com (63.214.186.6 Nikotel server) and a CiscoSystemsSIP (195.126.99.75). I suppose this second IP is part of the Nikotel routers. The problem is that, when my Asterisk sends a INVITE message including the second IP, the same Cisco returns a 606 message. After a couple of this messages, the server hungs up with maximum retries. Following are the messages I'm talking about. Any ideas? Am I doing something wrong? Sip read: SIP/2.0 183 Session Progress Via: SIP/2.0/UDP 80.28.41.108:6012;branch=z9hG4bK65f066d4 From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Date: Thu, 18 Mar 2004 14:34:34 GMT Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Server: Cisco-SIPGateway/IOS-12.x CSeq: 103 INVITE Allow-Events: telephone-event Content-Disposition: session;handling=required Content-Type: application/sdp Content-Length: 286 Contact: <sip:34645984891@195.126.99.75:5060> Record-Route: <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> v=0 o=CiscoSystemsSIP-GW-UserAgent 4092 6217 IN IP4 195.126.99.75 s=SIP Call c=IN IP4 195.126.99.75 t=0 0 m=audio 16842 RTP/AVP 3 101 100 c=IN IP4 195.126.99.75 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:100 X-NSE/8000 a=fmtp:100 192-194 14 headers, 12 lines Found audio format UNKN Found audio format UNKN Found audio format UNKN Found description format GSM Found description format telephone-event Found description format X-NSE Capabilities: us - 1550, them - 2/0, combined - 2 Non-codec capabilities: us - 1, them - 1, combined - 1 -- SIP/nikotel-c3c9 is making progress passing it to IAX2[13101@13101]/10 bcn01*CLI> Sip read: SIP/2.0 200 OK Via: SIP/2.0/UDP 80.28.41.108:6012;branch=z9hG4bK65f066d4 From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Date: Thu, 18 Mar 2004 14:34:34 GMT Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Server: Cisco-SIPGateway/IOS-12.x CSeq: 103 INVITE Session-Expires: 120;refresher=uas Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Content-Type: application/sdp Content-Length: 286 Contact: <sip:34645984891@195.126.99.75:5060> Record-Route: <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> v=0 o=CiscoSystemsSIP-GW-UserAgent 4092 6217 IN IP4 195.126.99.75 s=SIP Call c=IN IP4 195.126.99.75 t=0 0 m=audio 16842 RTP/AVP 3 101 100 c=IN IP4 195.126.99.75 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:100 X-NSE/8000 a=fmtp:100 192-194 15 headers, 12 lines Found audio format UNKN Found audio format UNKN Found audio format UNKN Found description format GSM Found description format telephone-event Found description format X-NSE Capabilities: us - 1550, them - 2/0, combined - 2 Non-codec capabilities: us - 1, them - 1, combined - 1 list_route: hop: <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> list_route: hop: <sip:34645984891@195.126.99.75:5060> set_destination: Parsing <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> for address/port to send to -- SIP/nikotel-c3c9 answered IAX2[13101@13101]/10 set_destination: set destination to 63.214.186.6, port 5060 Transmitting: ACK sip:34645984891@195.126.99.75:5060 SIP/2.0 Via: SIP/2.0/UDP 80.28.41.108:5082;branch=z9hG4bK65f066d4 Route: <sip:34645984891@195.126.99.75:5060> From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Contact: <sip:minder@80.28.41.108:5082> Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 103 ACK User-Agent: Asterisk PBX Content-Length: 0 (no NAT) to 63.214.186.6:5060 bcn01*CLI> Sip read: SIP/2.0 200 OK Via: SIP/2.0/UDP 80.28.41.108:6012;branch=z9hG4bK65f066d4 From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Date: Thu, 18 Mar 2004 14:34:34 GMT Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Server: Cisco-SIPGateway/IOS-12.x CSeq: 103 INVITE Session-Expires: 120;refresher=uas Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO Allow-Events: telephone-event Content-Type: application/sdp Content-Length: 286 Contact: <sip:34645984891@195.126.99.75:5060> Record-Route: <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> v=0 o=CiscoSystemsSIP-GW-UserAgent 4092 6217 IN IP4 195.126.99.75 s=SIP Call c=IN IP4 195.126.99.75 t=0 0 m=audio 16842 RTP/AVP 3 101 100 c=IN IP4 195.126.99.75 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:100 X-NSE/8000 a=fmtp:100 192-194 15 headers, 12 lines Found audio format UNKN Found audio format UNKN Found audio format UNKN Found description format GSM Found description format telephone-event Found description format X-NSE Capabilities: us - 1550, them - 2/0, combined - 2 Non-codec capabilities: us - 1, them - 1, combined - 1 list_route: hop: <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> list_route: hop: <sip:34645984891@195.126.99.75:5060> set_destination: Parsing <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> for address/port to send to set_destination: set destination to 63.214.186.6, port 5060 Transmitting: ACK sip:34645984891@195.126.99.75:5060 SIP/2.0 Via: SIP/2.0/UDP 80.28.41.108:5082;branch=z9hG4bK65f066d4 Route: <sip:34645984891@195.126.99.75:5060> From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Contact: <sip:minder@80.28.41.108:5082> Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 103 ACK User-Agent: Asterisk PBX Content-Length: 0 (no NAT) to 63.214.186.6:5060 bcn01*CLI> Sip read: INVITE sip:minder@80.28.41.108:5082;maddr=63.214.186.6 SIP/2.0 Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Date: Thu, 18 Mar 2004 14:35:22 GMT Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Supported: timer,100rel Session-Expires: 120;refresher=uac Min-SE: 60 User-Agent: Cisco-SIPGateway/IOS-12.x Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO CSeq: 101 INVITE Max-Forwards: 6 Remote-Party-ID: "13101" <sip:minder@195.126.99.75>;party=calling;screen=no;privacy=off Timestamp: 1079620522 Expires: 180 Allow-Events: telephone-event Content-Type: application/sdp Content-Length: 286 Contact: <sip:34645984891@195.126.99.75:5060> Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> v=0 o=CiscoSystemsSIP-GW-UserAgent 4092 6217 IN IP4 195.126.99.75 s=SIP Call c=IN IP4 195.126.99.75 t=0 0 m=audio 16842 RTP/AVP 3 101 100 c=IN IP4 195.126.99.75 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:100 X-NSE/8000 a=fmtp:100 192-194 22 headers, 12 lines Using latest request as basis request Sending to 63.214.186.6 : 5060 (non-NAT) Found audio format UNKN Found audio format UNKN Found audio format UNKN Found description format GSM Found description format telephone-event Found description format X-NSE Capabilities: us - 1550, them - 2/0, combined - 2 Non-codec capabilities: us - 1, them - 1, combined - 1 We're at 80.28.41.108 port 10552 Answering with preferred capability 2 Answering with non-codec capability 1 Reliably Transmitting (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 bcn01*CLI> Sip read: SIP/2.0 606 Not Acceptable "See warning header" Via: SIP/2.0/UDP 195.126.99.75 From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 CSeq: 101 INVITE Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Expires: 31 Content-Length: 0 Warning: Please check the VIA path. This message is not for us at 63.214.186.6:5060 9 headers, 0 lines Message is INVITE Retransmitting #1 (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 Retransmitting #2 (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 bcn01*CLI> Sip read: SIP/2.0 606 Not Acceptable "See warning header" Via: SIP/2.0/UDP 195.126.99.75 From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 CSeq: 101 INVITE Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Expires: 31 Content-Length: 0 Warning: Please check the VIA path. This message is not for us at 63.214.186.6:5060 9 headers, 0 lines Message is INVITE Retransmitting #3 (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 Retransmitting #4 (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 bcn01*CLI> Sip read: SIP/2.0 606 Not Acceptable "See warning header" Via: SIP/2.0/UDP 195.126.99.75 From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 CSeq: 101 INVITE Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Expires: 31 Content-Length: 0 Warning: Please check the VIA path. This message is not for us at 63.214.186.6:5060 9 headers, 0 lines Message is INVITE Retransmitting #5 (no NAT): SIP/2.0 200 OK Via: SIP/2.0/UDP 63.214.186.6 Via: SIP/2.0/UDP 195.126.99.75 Record-Route: <sip:minder@63.214.186.6:5060;maddr=63.214.186.6> From: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC To: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 101 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER Contact: <sip:minder@80.28.41.108:5082> Content-Type: application/sdp Content-Length: 215 v=0 o=root 19184 19186 IN IP4 80.28.41.108 s=session c=IN IP4 80.28.41.108 t=0 0 m=audio 10552 RTP/AVP 3 101 a=rtpmap:3 GSM/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - to 63.214.186.6:5060 Mar 18 15:09:31 WARNING[49159]: chan_sip.c:495 retrans_pkt: Maximum retries exceeded on call 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 for seqno 101 (Response) set_destination: Parsing <sip:34645984891@63.214.186.6:5060;maddr=63.214.186.6> for address/port to send to set_destination: set destination to 63.214.186.6, port 5060 Reliably Transmitting: BYE sip:34645984891@195.126.99.75:5060 SIP/2.0 Via: SIP/2.0/UDP 80.28.41.108:5082;branch=z9hG4bK65f066d4 Route: <sip:34645984891@195.126.99.75:5060> From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Contact: <sip:minder@80.28.41.108:5082> Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 CSeq: 104 BYE User-Agent: Asterisk PBX Proxy-Authorization: Digest username="minder", realm="nikotel.com", algorithm="MD5", uri="sip:34645984891@195.126.99.75:5060", nonce="fb5e64ef87", response="d52e4568812a7816740d52756519de59" Content-Length: 0 (no NAT) to 63.214.186.6:5060 == Spawn extension (sip_clients, 0834645984891, 1) exited non-zero on 'IAX2[13101@13101]/10' -- Hungup 'IAX2[13101@13101]/10' bcn01*CLI> Sip read: SIP/2.0 200 OK Via: SIP/2.0/UDP 80.28.41.108:6021;branch=z9hG4bK65f066d4 From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC CSeq: 104 BYE Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Expires: 31 Content-Length: 0 Contact: <sip:minder@80.28.41.108:5082> 9 headers, 0 lines Message is BYE bcn01*CLI> Sip read: SIP/2.0 200 OK Via: SIP/2.0/UDP 80.28.41.108:6021;branch=z9hG4bK65f066d4 From: "13101" <sip:minder@80.28.41.108:5082>;tag=as14c97a22 To: <sip:34645984891@calamar0.nikotel.com>;tag=18B7B6CC-1BEC Date: Thu, 18 Mar 2004 14:35:29 GMT Call-ID: 65989b546ffeb99f1490f28a39b2506b@80.28.41.108 Server: Cisco-SIPGateway/IOS-12.x Content-Length: 0 CSeq: 104 BYE