Hi,
I have set up a direct SIP trunk between our Mitel PBX and our Lync Server.
Calls from Lync to mitel work ok, and inbound calls from the Mitel box to the Lync Server route and answer ok.
The problem I am having, is that calls from the Mitel to the Lync server terminate with a busy tone after 1 - 2 minutes. (calls in the other direction are fine)
On the Lync Server logs I see the below message
"Normal termination response from gateway after the call was established";component="MediationServer"
Has anyone seen anything like this before?
Thanks
Duncan