Early Media negotiation in OXE?

[DS_Eire]

Hi,

I have an OXE R10.0. Could someone tell me please if it supports early media negotiation - if so where can I enable/disable this feature?

Thanks,

[alex]

For SDP in INVITE you can not configure anything - OXE always use it.
For SDP in 18X you can configure it in SIP/SIP gateway/SDP in 18X = True and in SIP/SIP Ext gateway/SDP in 18X = True.

[DS_Eire]

Thank you I see that parameter now.

What is the correct behavior for early media - I am running a test call between and Avaya SIP phone and a iptouch NOE phone. When the call is made from avaya to OXE I can see the media port in the avaya invite, the OXE responds with SDP in the 180 ringing and all looks fine - the audio streams have been negotiated successfully. Then the OXE endpoint answers and sends a 200 OK, but in this 200 OK it sends a new media port - surely this is incorrect? The idea of early media is that the SDP attributes have been already negotiated before the call is answered. Any thoughts? The call ends up with no audio as the new media port is not passed to avaya so they are both trying to talking on different media ports.

Thanks

[alex]

Then the OXE endpoint answers and sends a 200 OK, but in this 200 OK it sends a new media port - surely this is incorrect?

No, that's 100% correct.
Because in 180's SDP it is Ring-Back RTP media transmitted which is generated by GD not by iptouch NOE phone.
In 200 OK it is RTP media with IPTouch that should be established so new parameters supplied in 200 answer.
So this scenario looks fine from OXE side.