I'm trying to get our BRI lines connected to the UCM 6108 through the Yeastar TG400. I have read all the how to's but I'm still not getting it to work.
VoIP Trunk on the TG400 is created as service provider and status shows that it's good.
Bri_2_Sip route - call comes in correct, send call to trunk created in previous step
Created a peer sip trunk on the UCM side.
Create inbound route on UCM side for the peer sip trunk created in previous trunk.
Test call shows on the call logs on the Yeastar TG400 it shows that the correct source trunk and destination trunk was reached but the status shows FAILED.
Any help would be greatly appreciated.