The Cisco Unity Port Status monitor shows that Unity answers the call. Cisco Unity sends the closed greeting audio stream to the caller, but the calling party is not able to hear the greeting. Internal calls to Cisco Unity function properly, and callers are able to hear the closed greeting.
This is a one-way audio issue that affects calls through the Public Switched Telephone Network (PSTN [Gateway]) into Cisco Unity. This problem results when Cisco Unity sends the Cisco IOS Real-Time Protocol (RTP) packets to the wrong interface on the Gateway. For example, Cisco Unity sends packets the loopback interface instead of the Fast Ethernet interface, which is the "bound" interface for the Media Gateway Control Protocol (MGCP) process.
Issue these commands to confirm that Cisco Unity currently sends RTP packets to the wrong interface on the Gateway:
im configuring a H323 E1 voice gateway but whenever i input this command "network-clock select 1 controller E1 0/1/0" i get this message "G.781 based clock selection process is enabled Please unconfigure G.781 based configuration before con...