[Users] Openser generated strange SIP packets with LCR Fallback on a second gateway

Ovidiu Sas sip.nslu at gmail.com
Mon May 7 16:50:22 CEST 2007 

This issue is already fixed in the 1.2 svn.


Regards,
Ovidiu Sas

On 5/7/07, mailinglist-openser-users
<mailinglist-openser-users at e-qual.fr> wrote:
>
>
>  Version: OpenSer 1.2.0
>
>  I have a phone (using G711 as voice codec ) using openser as outbound
> proxy, openser has 2 routes
>  - gateway1 (does not allow G711)
>  - gateway2
>
>  When the phone try a call,  openser try first gateway1 and that fails with
> error code "488 Not acceptable here" ( which is normal because G711 is not
> allowed on that gateway ). Then Openser then try gateway2 but it seems that
> Openser is generating wrong SIP packets especially, it is using header
> "transport=udp..t" instead of "transport=udp".
>
>  Is this a known bug on LCR fallback ?
>  Note that on the first gateway1, one digit is stripped before trying the
> call; on the second gateway, no digits are stripped.
>
>  Below is an extract of the SIP dialog ( ngrep output in attachement ):
>
>  o Phone to OpenSer
>  U phone:5060 -> openser:5060
>  INVITE sip:xxxxxxxx at sip1.e-qual.fr SIP/2.0.
>
>  U openser:5060 -> phone:5060
>  SIP/2.0 100 Giving a try.
>
>  o  OpenSer to Gateway1
>  U openser:5060 -> gateway1:5060
>  INVITE sip:xxxxxxxx at gateway1:5060;transport=udp SIP/2.0.
>
>  U gateway1:5060 -> openser:5060
>  SIP/2.0 488 Not acceptable here.
>
>  U openser:5060 -> gateway1:5060
>  ACK sip:516442431 at gateway1:5060;transport=udp SIP/2.0.
>
>  o  OpenSer to Gateway2
>  U openser:5060 -> gateway2:5060
>  INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
>
>  U openser:5060 -> gateway2:5060
>  INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
>
>  U openser:5060 -> gateway2:5060
>  INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
>
>
>  Regards,
>  Jerome
>
>
>  --
> Jerome
>
> gallois:/var/log# sudo /usr/bin/ngrep -W byline "" "port 5060"  |more
> filter: (ip or ip6) and ( port 5060 )
> #
> U phone:5060 -> openser:5060
> INVITE sip:xxxxxxxx at sip1.e-qual.fr SIP/2.0.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 70.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
> #
> U openser:5060 -> phone:5060
> SIP/2.0 100 Giving a try.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Server: OpenSER (1.2.0-notls (i386/linux)).
> Content-Length: 0.
> .
>
> #
> U openser:5060 -> gateway1:5060
> INVITE sip:xxxxxxxxx at gateway1:5060;transport=udp SIP/2.0.
> Record-Route: <sip:openser;lr=on;ftag=c0a80843-16>.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 69.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.0.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> P-hint: outbound PSTN.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
> #
> U gateway1:5060 -> openser:5060
> SIP/2.0 488 Not acceptable here.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.0;received=openser.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>;tag=as714f5f56.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> CSeq: 1 INVITE.
> User-Agent: Asterisk PBX.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY.
> Contact: <sip:xxxxxxxxx at gateway1>.
> Content-Length: 0.
> .
>
> #
> U openser:5060 -> gateway1:5060
> ACK sip:xxxxxxxxx at gateway1:5060;transport=udp SIP/2.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.0.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>;tag=as714f5f56.
> CSeq: 1 ACK.
> User-Agent: OpenSER (1.2.0-notls (i386/linux)).
> Content-Length: 0.
> .
>
> #
> U openser:5060 -> gateway2:5060
> INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
> Record-Route: <sip:openser;lr=on;ftag=c0a80843-16>.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 69.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.1.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> P-hint: outbound PSTN.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
> #
> U openser:5060 -> gateway2:5060
> INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
> Record-Route: <sip:openser;lr=on;ftag=c0a80843-16>.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 69.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.1.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> P-hint: outbound PSTN.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
> #
> U openser:5060 -> gateway2:5060
> INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
> Record-Route: <sip:openser;lr=on;ftag=c0a80843-16>.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 69.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.1.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> P-hint: outbound PSTN.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
> #
> U openser:5060 -> gateway2:5060
> INVITE sip:xxxxxxxx at gateway2:5060;transport=udp..t SIP/2.0.
> Record-Route: <sip:openser;lr=on;ftag=c0a80843-16>.
> Call-ID: call-717C8C1D-CEDE-2910-0D00-26 at phone.
> Contact: <sip:phone>.
> Content-Length: 221.
> Content-Type: application/sdp.
> CSeq: 1 INVITE.
> From: <sip:sip1.e-qual.fr>;tag=c0a80843-16.
> Max-Forwards: 69.
> Session-GUID: 875967334-858992696-842282596-875782963.
> Supported: 100rel.
> To: <sip:xxxxxxxx at sip1.e-qual.fr>.
> User-Agent: Quintum/1.0.0.
> Via: SIP/2.0/UDP openser;branch=z9hG4bKe7a2.b7f82867.1.
> Via: SIP/2.0/UDP phone;branch=z9hG4bK-tenor-c0a8-0843-001c.
> Quintum:
> 0c01030b0237370501001301000f0b413031322d323032334332.
> P-hint: outbound PSTN.
> .
> v=0.
> o=Quintum 17 17 IN IP4 phone.
> s=VoipCall.
> c=IN IP4 phone.
> t=0 0.
> m=audio 10274 RTP/AVP 4 101.
> c=IN IP4 phone.
> a=rtpmap:4 g723/8000/1.
> a=ptime:30.
> a=rtpmap:101 telephone-event/8000/1.
> a=sendrecv.
>
>
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