It is a call which is made over internet protocol (VoIP). For example,
one can call using Google Voice to other recipient located miles away. Such
call can also be international.
“Shared Call” gives an opportunity to show the “line” of the certain person (manager) on one or several phones. It is useful for executive secretaries, when the line of the director is also seen on the telephone display of the executive secretary. Additionally the program can be customized so to show the main line on more than one phone, thus, gives an opportunity to answer the call from several places.