Call waiting with “Caller ID” uses a special signal in
order to warn you about an incoming call, during another call there are shown the
name and number of the calling subscriber on the display. The function also
allows switching between two calls.
The enhanced version of a standard plan of outgoing calls offers the administrators more control over outgoing calls within their groups. In addition to “blocking” and “access” of definite calls, administrators also have an opportunity to customize the profile of outgoing calls of their group and separate participants.