Hello Friends,
I have this typical issue in some of my 7841 and 7821 phones registered with cisco cucm 12.5.1
The phones are registered properly but in some phones when user pick up the handset to call he don't get dial tone, for dial tone he have to press the call key on the phone keypad only then he can dial and make the call without any issue. I tried resetting the phone but it didn't help
any kind of input is deeply appreciated
