[SR-Users] Rewrite Invite w/o sdp

[Serge S. Yuriev]

Hello,

I'm going to send 183 w/o sdp stimulating Cisco to send PRACK. After 
rebilding INVITE and sending it to callee we are expecting normal call 
flow: 183/180 (from callee) and 200 (or whatever final).
Thanks.

On 25/08/15 13:25, Daniel-Constantin Mierla wrote:
> Hello,
>
> saving an invite for later use can be achieved with
> t_suspend()/t_continue -- see the tmx module.
>
> However, regarding what you need, how do you plan to generate the sdp
> for early media/183? You need ip, port and media description, are they
> going to be just some random/invalid values?
>
> Cheers,
> Daniel
>
> On 24/08/15 20:28, Serge Yuriev wrote:
>> Hello,
>>
>> Our PBX (Cisco CallManager) uses "late offer" sending invites w/o sdp. After receiving provisional reply 18x it answers prack with sdp
>> I'm trying to realize following scenario:
>>
>> 1 Pbx (invite no sdp)
>> 2 kamailio hold and saves invite
>> 3 send 183 to Pbx
>> 4 get prack with sdp
>> 5 construct new invite from saved one and sdp from prack
>> 6 send it to calee
>>
>> Is this possible? How to save invite for future use?
>>


-- 
Serge S. Yuriev
Lead VoIP engineer