I have a customer where we have installed a CUCM-BE 6.1.1. The main number, xxx4100 rings at the reception. If the reception is busy, the call overflows to the next hunt group member, extension 4101, which appears as the second line for 4 other phones.
The problem I am encountering is that when a call overflows to 4101 and one of the users takes the call, the call cannot be transferred to another user. This problem is intermittent. Has anyone come accross such problem.
I have increased the max number of calls on 4101 as 10 but I am getting the same problem.