Hi Guillermo.

According to your question, your provider should be able to cover the
signaling flow based on the standard.

*SIP method prack.*

PRACK is defined in RFC 3262:* Reliability of Provisional Responses in the
Session Initiation Protocol (SIP). *

In order to garantice the correct interworking between vendors.

BR






2014-04-24 13:15 GMT-05:00 Zuñiga, Guillermo <[email protected]>
:

>
>
>
>
> Hi fellows,
>
>
>
> I am having the following issue with a peer carriers conected to my GW.
>
> The scenario is the following, a call with a Invite which header 100rel,
> then the carrier response with 183 session progress and 180 Ringing,
>
> I was reading the RFC3262 and I am not pretty sure of the following:
>
> 1-Is strictly necesary that GW send a PRACK messages of the 180, before
> send any other messages in this case a UPDATE?
>
> 2- Could be that our GW is sending this UPDATE messages cause the peer is
> sending us in the 183 SDP Media Attibute information the Media Format value
> = 18 like [Unknown]?
>
>
>
>
>
>
>
>
> Attach files with info.
>
>
>
> Regards,
>
>
>
> *Guillermo L. Zuniga C.*
>
> Support Engineer & VoIP Specialist | e-mail:[email protected]
>
> Fix Phone: +5078307365 | MSN IM: [email protected]
>
> Mobile: +507 66700481
>
> *www.cwpanama.com* <http://www.cwpanama.com/>
>
>
>
>
>
> Guillermo ZunigaEspecialista de Soporte TécnicoGerencia de Soporte Técnico
>
> Tel:+507 263-6671Cel:+507 6670-0481 Fax:+507 265-3295Email:
> [email protected]
>
>  <http://www.cwpanama.com>
>
> <http://www.cwpanama.com>
>
>
>
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>
> <http://www.cwpanama.com>
>
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-- 
Saludos

José Berroterán
0424 2118925
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