Voice over IP Cisco - IP phone to CCM to GW to PSTN (one ring then busy tone)

Author

IP phone to CCM to GW to PSTN (one ring then busy tone)

Tamer Mohamed Bayomy

2005-05-30, 2:45 am

Dear All,

Kindly I need help as I'm having very weird problem which is as follows:

At Site 1:

We have IP Phones registered in Site 1 CCM,

At Site 2:

We have cisco voice gateway which can dial to the PSTN

The problem:

When I dial from the IP phones any number behind Site 2 PSTN the call
rings only one time and then send me busy tone.

This case is casing business pain and I can not find any clue, I need
help..

Regards..