[OpenSIPS-Users] Handling of Call With SDP in Ack

[Davide Dal Frà]

Hi all,

I'have a device (CUCM) that send to my Opensips the Invite Without SDP 
Trace (if i'm not wrong there nothing strange in this), but it send the 
SDP in the following ACK.

In my config, i call engage_media_proxy on the first invite,is this correct?

If the call has been answered there are no problem, but otherwise if is 
Busy or Cancelled the ACK with SDP  has never been received from 
opensips and in log i can see:

    error: Got `remove' command from OpenSIPS for unknown session with
    call-id `6801880-13810ffe-725-30111ac at 172.17.1.3'


Is this caused because no ACK with sdp are received?So 
engage_media_proxy is dialog based ,the dialog end but no session has 
been created on media side, right?I can simply ignore this error or i 
can fix this?




Thanks in advance,

Davide

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