Dear forum users.
I have a client with the following:-
CUCM System version: 6
Firmware:SCCP11.8-4-2S
phone model :7911
Phone number : 1067
The client is complaing of call drops , internal or external it doesn't matter and the time varies, can be 20 seconds or five minutes. but some calls internal or external done sucessfully
I actually upgrade the firmware but the same isuue ..
Kindly find two attached files about below cases
Case 1 --1067 called 11 -----call droped before i listen to ring back
Case 2 --ext 2222 dialed ext 1160 then ext 1067 picked up this call ,call droped after 15 seconds .
Thanks In Advance
