Our team works remotely and we recently ported our telephone numbers from RingCentral onto CallCentric. We've all downloaded the Zoiper app on our phones (some Apple, some Android). Our main line rings to the default registration, but our employee is unable to transfer calls to other users. Another user got an incoming call, caller couldn't hear her and hung up.
What settings do I need to make sure everyone has enabled in order for us all to communicate again?