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Gateway Protocols

Introduction

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H.323
Extension of ITU-T standard H.320 that enables videoconferencing over LANs and other packet-switched networks, as well as video over the Internet.

Media Gateway Control Protocol (MGCP)
Media Gateway Control Protocol (MGCP)1.0 is a protocol for the control of Voice over IP (VoIP) calls by external call-control elements known as media gateway controllers (MGCs) or call agents (CAs).

Skinny Call Control Protocol (SCCP)
Skinny gateways are a series of digital gateways that include the DT-24+, the DT-30+, and the WS-X6608-x1 Catalyst voice module.

Voice over ATM (VoATM)

Voice over Frame Relay (VOFR)