[SIPForum-discussion] query

Gopalarathnam Sambasivan s.gopalarathnam at gmail.com
Mon Feb 18 09:26:23 UTC 2008

Hi Rohit,
Can you attach the ethereal capture?
what do you use for SIP UA - some simulation? I hope the MGCF product you
use will store dialog properly and most probably the error is in the way you
use the simulator.
Check the dialog (callid + from-tag + to-tag). Please see the log below of a
successful INFO (only needed headers shown).

Best Regards,

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP;branch=z9hG4bK*002e-00000006-02f0

From: <tel:+91304030001>;tag=0082-00000001-0eff

To: <tel:919811000002>;tag=0017-000026c9

Call-ID: 0082-00000001-0eff47a9dd18-8e3-85da490 at sipua


INFO xxxx..... SIP/2.0

Via: SIP/2.0/UDP;branch=z9hG4bK*0017-00002fc0

From: <tel:919811000002>;tag=0017-000026c9

To: <tel:+91304030001>;tag=0082-00000001-0eff

Call-ID: 0082-00000001-0eff47a9dd18-8e3-85da490 at sipua

CSeq: 343101 INFO
On 2/18/08, rohit b <hbrohit at gmail.com> wrote:
> hello all,
> I am working on testing the SIP product MGCF ( Media Gateway Control
> Function)
> It is basically MSC which will connect mobiles to IMS network.
> I am facing some issue in testing some scnario.
> I need to send INFo mesage from SIP UA  for that I am getting 481 call
> tranasactio does not exist responce from other end.
> I checked the via header , branch paramaeter, everything is correct.
> Does any one have any idea..
> Please reply back
> regards,
> Rohit
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