[OpenSIPS-Users] Call transfer problem

Tue Mar 10 15:54:29 CET 2015

Sorry I meant to place call on hold, not transfer

On Mon, Mar 9, 2015 at 8:40 PM, Schneur Rosenberg <rosenberg11219 at gmail.com>
wrote:

> I have a OpenSIPS server that acts as a load balancing server for a couple
> of asterisk servers, and lately I'm having a issue with asterisk responding
> with a 488 Not acceptable here for transfer requests when it comes to port
> 5060 on the Opensips server, but if I send it to another port it works
> fine, I realized that when using port 5060 the sdp has port 0  ie  (m=audio
> 0 RTP/AVP 0 8 101.) but when using another port it does have a port number
> (ie m=audio 16422 RTP/AVP 0 8 101.)
>
> Im attaching both traces, I changed ips for security 212.212.212.212. is
> the opensips server, 212.212.212.213 is the asterisk server,
> and 91.176.221.245 is the end user.
>
> Can anyone please help me make this work on port 5060 too, and can you
> please explain why it would act differently, the NAT is also handeled
> differently as can be seen in the VIA header (maybe router is trying to use
> some ALG?)
>
> Here is the trace using port 5060
>
> U 91.176.221.245:49242 -> 212.212.212.212:5060
> INVITE sip:19174250000 at 212.212.212.213:5060;nat=yes SIP/2.0.
> Via: SIP/2.0/UDP 91.176.221.245:32781;branch=z9hG4bK-a6635dda.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=3189bbd5cf53a984o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as7f636018.
> Call-ID: f8a392e9-f1139d80 at 192.168.0.101.
> CSeq: 103 INVITE.
> Max-Forwards: 70.
> Route: <sip:212.212.212.212:5060
> ;lr;ftag=3189bbd5cf53a984o0;did=d97.6c4d2422>.
> Proxy-Authorization: Digest
>
>
> username="WindowP1",realm="myserver",nonce="54f468a5000180cd88bd6cead37ab9d1920cc4c54a0ecdd3",uri="sip:19174250000 at 212.212.
>
> 212.213:5060",algorithm=MD5,response="0a5a118e2b318621f32b5d60b600229c".
> Contact: "EXT 101" <sip:WindowP1 at 91.176.221.245:32781>.
> Expires: 30.
> User-Agent: Cisco/SPA525G2-7.5.6.
> Content-Length: 226.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 33523926 33523927 IN IP4 192.168.0.101.
> s=-.
> c=IN IP4 0.0.0.0.
> t=0 0.
> m=audio 0 RTP/AVP 0 8 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:30.
> a=sendonly.
>
> U 212.212.212.212:5060 -> 91.176.221.245:49242
> SIP/2.0 100 Giving a try.
> Via: SIP/2.0/UDP 91.176.221.245:32781
> ;received=91.176.221.245;rport=49242;branch=z9hG4bK-a6635dda.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=3189bbd5cf53a984o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as7f636018.
> Call-ID: f8a392e9-f1139d80 at 192.168.0.101.
> CSeq: 103 INVITE.
> Server: OpenSIPS (1.7.2-notls (x86_64/linux)).
> Content-Length: 0.
> .
>
> U 212.212.212.212:5060 -> 212.212.212.213:5060
> INVITE sip:19174250000 at 212.212.212.213:5060 SIP/2.0.
> Record-Route: <sip:212.212.212.212;lr;ftag=3189bbd5cf53a984o0>.
> Via: SIP/2.0/UDP 212.212.212.212;branch=z9hG4bKe66e.0702ec92.0.
> Via: SIP/2.0/UDP 91.176.221.245:32781
> ;rport=49242;received=91.176.221.245;branch=z9hG4bK-a6635dda.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=3189bbd5cf53a984o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as7f636018.
> Call-ID: f8a392e9-f1139d80 at 192.168.0.101.
> CSeq: 103 INVITE.
> Max-Forwards: 69.
> Proxy-Authorization: Digest
>
>
> username="WindowP1",realm="myserver",nonce="54f468a5000180cd88bd6cead37ab9d1920cc4c54a0ecdd3",uri="sip:19174250000 at 212.212.
>
> 212.213:5060",algorithm=MD5,response="0a5a118e2b318621f32b5d60b600229c".
> Contact: "EXT 101" <sip:WindowP1 at 91.176.221.245:49242;nat=yes>.
> Expires: 30.
> User-Agent: Cisco/SPA525G2-7.5.6.
> Content-Length: 226.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 33523926 33523927 IN IP4 192.168.0.101.
> s=-.
> c=IN IP4 0.0.0.0.
> t=0 0.
> m=audio 0 RTP/AVP 0 8 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:30.
> a=sendonly.
>
> U 212.212.212.213:5060 -> 212.212.212.212:5060
> SIP/2.0 488 Not acceptable here.
> Via: SIP/2.0/UDP
> 212.212.212.212;branch=z9hG4bKe66e.0702ec92.0;received=212.212.212.212;rport=5060.
> Via: SIP/2.0/UDP 91.176.221.245:32781
> ;rport=49242;received=91.176.221.245;branch=z9hG4bK-a6635dda.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=3189bbd5cf53a984o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as7f636018.
> Call-ID: f8a392e9-f1139d80 at 192.168.0.101.
> CSeq: 103 INVITE.
> Server: SIP Server 9.21/CS.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
> PUBLISH.
> Supported: replaces, timer.
> X-Asterisk-HangupCause: Normal Clearing.
> X-Asterisk-HangupCauseCode: 16.
> Content-Length: 0.
> .
> here is the trace using port 5744
> U 91.176.221.245:63719 -> 212.212.212.212:5744
> INVITE sip:19174250000 at 212.212.212.213:5060;nat=yes SIP/2.0.
> Via: SIP/2.0/UDP 192.168.0.101:5060;branch=z9hG4bK-6f0161f0.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=f8c2b14a55549ac2o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as1fcb82f4.
> Call-ID: 5832b9ea-a4a32aa2 at 192.168.0.101.
> CSeq: 103 INVITE.
> Max-Forwards: 70.
> Route: <sip:212.212.212.212:5744
> ;lr;ftag=f8c2b14a55549ac2o0;did=9ae.775cc5c5>.
> Proxy-Authorization: Digest
> username="WindowP1",realm="myserver",nonce="54f46d7a0000081272baa39f9e34a0ee81f471dec7b034ba",uri="
> sip:19174250000 at 212.212.212.213:5060
> ",algorithm=MD5,response="4096f485853bf6a209424c36dac2342b".
> Contact: "EXT 101" <sip:WindowP1 at 192.168.0.101:5060>.
> Expires: 30.
> User-Agent: Cisco/SPA525G2-7.5.6.
> Content-Length: 224.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 30981 30982 IN IP4 192.168.0.101.
> s=-.
> c=IN IP4 0.0.0.0.
> t=0 0.
> m=audio 16422 RTP/AVP 0 8 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:30.
> a=sendonly.
>
> U 212.212.212.212:5744 -> 91.176.221.245:63719
> SIP/2.0 100 Giving a try.
> Via: SIP/2.0/UDP 192.168.0.101:5060
> ;received=91.176.221.245;rport=63719;branch=z9hG4bK-6f0161f0.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=f8c2b14a55549ac2o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as1fcb82f4.
> Call-ID: 5832b9ea-a4a32aa2 at 192.168.0.101.
> CSeq: 103 INVITE.
> Server: OpenSIPS (1.7.2-notls (x86_64/linux)).
> Content-Length: 0.
> .
>
>
> U 212.212.212.212:5744 -> 212.212.212.213:5060
> INVITE sip:19174250000 at 212.212.212.213:5060 SIP/2.0.
> Record-Route: <sip:212.212.212.212:5744;lr;ftag=f8c2b14a55549ac2o0>.
> Via: SIP/2.0/UDP 212.212.212.212:5744;branch=z9hG4bKa7d5.c5b6d177.0.
> Via: SIP/2.0/UDP 192.168.0.101:5060
> ;rport=63719;received=91.176.221.245;branch=z9hG4bK-6f0161f0.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=f8c2b14a55549ac2o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as1fcb82f4.
> Call-ID: 5832b9ea-a4a32aa2 at 192.168.0.101.
> CSeq: 103 INVITE.
> Max-Forwards: 69.
> Proxy-Authorization: Digest
> username="WindowP1",realm="myserver",nonce="54f46d7a0000081272baa39f9e34a0ee81f471dec7b034ba",uri="
> sip:19174250000 at 212.212.212.213:5060
> ",algorithm=MD5,response="4096f485853bf6a209424c36dac2342b".
> Contact: "EXT 101" <sip:WindowP1 at 91.176.221.245:63719;nat=yes>.
> Expires: 30.
> User-Agent: Cisco/SPA525G2-7.5.6.
> Content-Length: 224.
> Content-Type: application/sdp.
> .
> v=0.
> o=- 30981 30982 IN IP4 192.168.0.101.
> s=-.
> c=IN IP4 0.0.0.0.
> t=0 0.
> m=audio 16422 RTP/AVP 0 8 101.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-15.
> a=ptime:30.
> a=sendonly.
>
> U 212.212.212.213:5060 -> 212.212.212.212:5744
> SIP/2.0 100 Trying.
> Via: SIP/2.0/UDP 212.212.212.212:5744
> ;branch=z9hG4bKa7d5.c5b6d177.0;received=212.212.212.212;rport=5744.
> Via: SIP/2.0/UDP 192.168.0.101:5060
> ;rport=63719;received=91.176.221.245;branch=z9hG4bK-6f0161f0.
> Record-Route: <sip:212.212.212.212:5744;lr;ftag=f8c2b14a55549ac2o0>.
> From: "EXT 101" <sip:WindowP1 at sip.myserver.com>;tag=f8c2b14a55549ac2o0.
> To: <sip:19174250000 at sip.myserver.com>;tag=as1fcb82f4.
> Call-ID: 5832b9ea-a4a32aa2 at 192.168.0.101.
> CSeq: 103 INVITE.
> Server: SIP Server 9.21/CS.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
> PUBLISH, MESSAGE.
> Supported: replaces, timer.
> Contact: <sip:19174250000 at 212.212.212.213:5060>.
> Content-Length: 0.
> .
>
>
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