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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 15:21 UTC

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Date: Fri, 12 Feb 2010 10:22:37 -0500
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From: Nitin Kapoor <nitinkapoorr@gmail.com>
To: sip@ietf.org
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Cc: sip-implementors@lists.cs.columbia.edu
Subject: Re: [Sip] TCP to UDP rtcp media attributes in SDP not passing through nextone
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Could any please help me out on this.

Thanks,
Nitin Kapoor

On 12 February 2010 08:16, Nitin Kapoor <nitinkapoorr@gmail.com> wrote:

> 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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