I have setup a sip trunk between my call manager and cme. I can call any phone from CUCM to the CME. When I try to place a call from CME to CUCM I am getting a fast busy. Here is by SIP Trunk on the CME side
dial-peer voice 1003 voip
session protocol sipv2
session target ipv4:x.x.x.x
session transport tcp
I currently have the destination setup to try and call 1 specific phone for troubleshooting. On my CUCM side I have CSS set, Destination Address, MTP Preferred Origination Codec 711ulaw. Any ideas?