cisco IP Phone button not working when call established

[Md.Mosharof Hossain]

Hi,

Currently we are using cisco CUCM 7.1(5) and working fine. when we call other company's phone number, the IVR playing and prompt press 0 or 1, 2 etc for assitance but when we press the IP phone button (0 0r 1.2 etc) it is not working. please help to resolve the problem.

thank you.

[Suresh Subramanian]

Please describe your call flow with GW protocol and config.