SIP Server not sending SDP on all Invites to one site

[Todd]

Hey Guys, wanted to run this by everyone to see if anyone has seen this.  We have a SIP Server/Stream Manager that queues up calls and have sip agents as well as agents off two Avayas.  We see different results when agents are targeted on the different Avayas.  With our OMA Avaya, we almost always see SDP in the Invite to the PBX and the call works great.  With our SAT Avaya, we usually never see SDP in the Invite and we get 1 way audio and experience dropped calls.  We've checked our Sip and Stream Mgr settings which shouldn't matter as they are used by both.  We have a Sonus in between us and the Avaya.  The only real difference is the trunks between the Avayas and the Sonus and we've checked those as well and nothing jumps out.  Anyone seen this before?  Any tips would be appreciated!!

Todd

[fnunezsa]

Sounds like some DNs (trunks or extension DN) have reuse-sdp-on-reinvite option set to true and others don't. Double check that.

[Todd]

Thanks, but these are actually Avaya extensions sitting off an Avaya TServer so that setting doesn't apply.  We were able to make this work by attaching dummy sdp data.