Hi,
Now I try to integrate CUCM vers 11.5 with ALCATEL vers 12 via SIP Trunk.
When I call from cisco phone (CUCM side) to Alcatel phone (Alcatel Side) everything is normally.
But when I call from Alcatel phone to Cisco phone voice will delay around 1-2 second.
I try to tuning about codec or anything but it's not working.
Please suggest to me.
Thank you