Sip trace would help... is call forwarding turned on on the phone?

On Feb 11, 2016, at 3:46 AM, David Wafula <davidwaf@gmail.com> wrote:

Hi all,
I have two users who registered in the same domain: user A and B.
A can call B just fine. When B tries to call A, there is silence (no ringback)..then after sometime the call goes into voice mail. A never receives the call.  Please see the call trace here:



Am not sure what is causing it.