Re: Two Media Stream in One call

> Hello,
>
> Below is the packet in UDP format, Could you please help me on this to
> understand this scenario. Also attached is the complete traces.
>
> INVITE sip:[email protected]<sip%[email protected]>SIP/2.0
>
> Max-Forwards: 69
>
> Session-Expires: 3600;refresher=uac
>
> Supported: timer, 100rel
>
> To: <sip:[email protected]<sip%[email protected]>
> >
>
> From: <sip:8003223223@tmsash1-15-sip>;tag=3468945569-250042
>
> Call-ID: [email protected]
>
> CSeq: 1 INVITE
>
> Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER,
> SUBSCRIBE, PRACK, UPDATE
>
> Via: SIP/2.0/UDP 8.15.244.10:5060
> ;branch=z9hG4bKf5de4d0e3c0860d122139e1e30a2995c
>
> Contact: <sip:[email protected]:5060>
>
> Call-Info:
> <sip:8.15.244.10>;method="NOTIFY;Event=telephone-event;Duration=1000"
>
> Content-Type: application/sdp
>
> Content-Length: 124
>
>
>
> v=0
>
> o=mscasheq01 547500705 547500705 IN IP4 8.15.244.10
>
> s=sip call
>
> c=IN IP4 8.15.244.11
>
> t=0 0
>
> m=audio 19612 RTP/AVP 0
>
> SIP/2.0 100 Trying
>
> Via: SIP/2.0/UDP 8.15.244.10:5060
> ;branch=z9hG4bKf5de4d0e3c0860d122139e1e30a2995c
>
> From: <sip:8003223223@tmsash1-15-sip>;tag=3468945569-250042
>
> To: <sip:[email protected]<sip%[email protected]>
> >
>
> Call-ID: [email protected]
>
> CSeq: 1 INVITE
>
> Server: Sansay VSX 2.1
>
> Content-Length: 0
>
>
>
> SIP/2.0 180 Ringing
>
> Via: SIP/2.0/UDP 8.15.244.10:5060
> ;branch=z9hG4bKf5de4d0e3c0860d122139e1e30a2995c
>
> From: <sip:8003223223@tmsash1-15-sip>;tag=3468945569-250042
>
> To: <sip:[email protected]<sip%[email protected]>
> >;tag=228209687-tdb1145808424
>
> Call-ID: [email protected]
>
> CSeq: 1 INVITE
>
> Server: Sansay VSX 2.1
>
> Content-Length: 0
>
>
>
> SIP/2.0 200 OK
>
> Via: SIP/2.0/UDP 8.15.244.10:5060
> ;branch=z9hG4bKf5de4d0e3c0860d122139e1e30a2995c
>
> From: <sip:8003223223@tmsash1-15-sip>;tag=3468945569-250042
>
> To: <sip:[email protected]<sip%[email protected]>
> >;tag=228209687-tdb1145808424
>
> Call-ID: [email protected]
>
> CSeq: 1 INVITE
>
> Server: Sansay VSX 2.1
>
> Contact: <sip:[email protected]:5060;transport=udp>
>
> Content-Type: application/sdp
>
> Content-Length:   158
>
>
>
> v=0
>
> o=sansay-VSX 10 10 IN IP4 64.156.174.71
>
> s=session controller
>
> c=IN IP4 64.156.174.71
>
> t=0 0
>
> m=audio 10766 RTP/AVP 0
>
> a=rtpmap:0 PCMU/8000
>
> a=ptime:20
>
> ACK sip:[email protected]:5060;transport=udp SIP/2.0
>
> Max-Forwards: 69
>
> To: <sip:[email protected]<sip%[email protected]>
> >;tag=228209687-tdb1145808424
>
> From: <sip:8003223223@tmsash1-15-sip>;tag=3468945569-250042
>
> Call-ID: [email protected]
>
> CSeq: 1 ACK
>
> Allow: INVITE, BYE, OPTIONS, CANCEL, ACK, REGISTER, NOTIFY, INFO, REFER,
> SUBSCRIBE, PRACK, UPDATE
>
> Via: SIP/2.0/UDP 8.15.244.10:5060
> ;branch=z9hG4bK7208e1bfdd2962741dc3dee9d2576820
>
> Contact: <sip:[email protected]:5060>
>
> Content-Length: 0
>
>
> Thanks,
> Nitin Kapoor
>
> 2009/12/10 Christer Holmberg <[email protected]>
>
>
>> Hi,
>>
>> It is possible.
>>
>> In theory this could be done with a single c- line, because SDP only talks
>> about where media is to be sent - not where it comes from.
>>
>> In reality, however, I assume this is a case where each m- line has its
>> own c- line, each with a different IP address.
>>
>> Regards,
>>
>> Christer
>>
>>
>> -----Original Message-----
>> From: [email protected] on behalf of Nitin Kapoor
>> Sent: Thu 12/10/2009 2:10 PM
>> To: [email protected]
>> Subject: [Sip] Two Media Stream in One call
>>
>> Hello All,
>>
>> I am facing the issue with one of my customer where he is getting two
>> media
>> streams in one call and they are using SBC(Nextone)
>>
>> I checked the signaling traces and everything looks okay to me as well as
>> the RTP traces too.
>>
>> As per the traces one  RTP packet is going from 64.156.174.71 and the
>> other
>> is coming from 8.15.244.11.
>>
>> Could you please let me know is it possible where i can have the two media
>> streams in one call when this is the not the conference call. And if this
>> is
>> possible then what is the scenario where its possible.
>>
>> Please find the attached traces for the same.
>>
>> Thanks,
>> Nitin Kapoor
>> General Telecom
>>
>>
>

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