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Re: [Sip] TCP to UDP rtcp media attributes in SDP not passing through nextone

Nitin Kapoor <nitinkapoorr@gmail.com> Fri, 12 February 2010 13:15 UTC

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Date: Fri, 12 Feb 2010 08:16:38 -0500
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From: Nitin Kapoor <nitinkapoorr@gmail.com>
To: aayush bhatnagar <abhatnagar192006@gmail.com>
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Cc: sip@ietf.org
Subject: Re: [Sip] TCP to UDP rtcp media attributes in SDP not passing through nextone
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Aayush,

Please find the attached Traces for both legs.

Thanks,
Nitin Kapoor

On 12 February 2010 08:12, aayush bhatnagar <abhatnagar192006@gmail.com>wrote;wrote:

> Can you paste wireshark logs for both ends of the SBC?
>
> On 12/02/2010, Nitin Kapoor <nitinkapoorr@gmail.com> wrote:
> > Dear Friend,
> >
> > I have some query about UDP & TCP for signaling.
> >
> > Basically I am using TCP protocol for signaling from my customer to SBC
> and
> > then SBC to Vendor using UDP for signaling. I mean CS user TCP to SBC,
> UDP
> > to carrier.  And OCS sends initial 183 with sdp that contains rtcp media
> > attribute information and SBC does not forward formation to carrier via
> UDP.
> >
> >
> > Call Flow is like this.
> >
> > UAC (Private)                    SBC
> > UAS(Public)
> >
> > |-----------Invite(TCP)---------->
> > |                                                       |
> > |
> > |                                                       |
> > |<-------- 100 Trying ------------ |
> >                                           |
> > |                                        | ----------- Invite
> > (UDP)----------------------->|
> > |
> > |                                                       |
> > |                                        |<--------- 100 Trying
> > ---------------------------|
> > |
> > |                                                       |
> >                                          | <---- 183 SDP Session
> > Progress-------|
> > |                                        |(183 SDP with RTCP Media
> >     |
> > |                                        |Attribute).
> >                                        |
> > |<--------- 183 SDP -------------
> > |
> > |
> > | 183 SDP Session
> > progress|                                                       |
> > | Without RTCP Media         |
> >                                                |
> > |Attribute
> > |                                                       |
> > |
> > |                                                       |
> > |
> > |                                                       |
> > |
> > |                                                       |
> >
> > Could anyone please help me out on this scenario. Why it’s not sending
> the
> > RTCP attribute to my UAC? Is there anything related to standard.
> >
> > I can share the Traces, if its required.
> >
> > Thanks,
> > Nitin Kapoor
> >
>
>
> --
> aayush
> http://in.linkedin.com/in/abhatnagar19
> ======
>

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