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.
Virtual PBX or Hosted PBX is offered by a telephone company and can free your business from investing in the costly hardware or a complex business phone system. Virtual PBX means that every service is processed via a telephone company offering a service with their own hardware and software.