What is a Media Gateway?

A media gateway is essentially a translation device that converts communications between disparate networks and protocols. The following are a few common examples of media gateway uses:

  • Connecting a UC platform to the PSTN (SIP Trunk, T-1, PRI, analog)
  • Connecting an analog or digital PBX to the PSTN (SIP Trunk, T-1, PRI)
  • Connecting an analog or digital PBX and VoIP PBX
  • Connecting an IP-based phone system to the PSTN (SIP Trunk, T-1, PRI, analog)
  • Connecting a legacy PBX to a UC platform like Microsoft Lync or OCS
  • Creating survivability and PSTN failover in remote offices
  • Supporting existing IP Phones in a UC platform like Microsoft Lync or OCS
  • Connect IP telephones to a legacy PBX
  • Extend a PBX to branch offices
  • Creating fax and legacy analog support for UC platforms and IP PBXs


Image courtesy of AudioCodes.com

Terms:

PBX - Private Branch Exchange; a telephone exchange that serves a particular business or office, as opposed to one that a common carrier or telephone company operates for many businesses or for the general public

PSTN - Public Switched Telephone Network; the network of the world's public circuit-switched telephone networks.

PRI - Primary Rate Interface; a form of ISDN (Integrated Services Digital Network) line which is a telecommunication standard that enables traditional phone lines to carry voice, data and video traffic, among others.

UnifiedCommunications.com can help you select the right gateway with products from leading manufacturers like Audio Codes, Dialogic, NET and more.

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