What Is the Function of a VoIP Gateway?
The set sights on and perform of a VoIP Gateway is to designate an interface in the middle of the avowed telephone networks using digital TDM (Time Division Multiplexing) technology and that of IP Networks expected to carry IP packets containing digital speech. The VoIP Gateway has to translate the digital media format used going on the subject of for the local network and the PSTN (Public Switched Telephone Network) in both directions. In accumulation, the Gateway will plus have to translate along in the middle of the every second signalling protocols used concerning the local network and PSTN. Today's Voice again IP networks digitise analogue speech for telephone calls my means of a Codec which stands for Coder Decoder or Compressor De-compressor. There are a number of codecs used within VoIP systems, subsequent to the most common of these sentient thing ITU-T codecs G.711 and G.729, and the GSM codecs used within the mobile telephone networks. Two versions of the g.711 codec ar