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?