I have h323 trunk between Ericsson PBX and CUCME. When the call is installed from PBX to CUCME, there is no dial tone. I hear only voice of another person (we can talk). In the case when I call from CUCME to PBX, everything is OK (I hear dial-tone and voice). What is the problem?
Config of Cisco:
dial-peer voice 1 voip
session target ipv4:192.168.1.1
ip qos dscp cs5 media
ip qos dscp cs5 signaling