Telrad IP Telephone System

Voice over IP

VoIP stands for Voice over Internet Protocol and is today's alternative to the traditional circuit switched telecommunications model. Using Voice over IP (VoIP) it is now possible to route your phone calls, fax and voice mail communications through the Internet or Intranet (IP).

Voice over IP is a digital telecommunications format - the analogue voice signal is digitalised into data packets, sent, and then reconverted back into a voice signal at its destination. VoIP uses TCP/IP to travel across either a private network (Intranet) or across the Internet to its destination. The TCP/IP networks are made of IP packets containing a header (to control communication) and a payload to transport data.

With VoIP it is possible to talk to one or more persons at once, and at the same time, you can exchange data with the people you are talking with - sending images, documents, graphs and videos, and all at a fraction of the cost of a conventional telephone call.