DTMF on second line of IP phone 7945 7960 no working

[Vijay Anand]

Hi All,

I have a situation where IP phone are configured with two lines, second in common on multiple phones. For first line everything is working fine but for second line dtmf is not working. 

call are going out through SIP trunk. 

do any body have an idea on this. 

regards

Vijay

[suthomas1]

Hello, 

I am facing similar issue. Second line on one of our 8841 IP phone does not work, the primary line extension works.

Were you able to solve this & what was the fix.

Thank you.