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The interaction between the media gateway and its controller is defined in the media gateway control protocol. Media gateway protocols were developed based on the Internet model of networking, the Internet Protocol Suite, and are referred to as device control protocols. A media gateway is a device that offers an IP interface and a legacy ...
The Media Gateway Control Protocol (MGCP) is a telecommunication protocol for signaling and call control in hybrid voice over IP (VoIP) and traditional telecommunication systems. It implements the media gateway control protocol architecture for controlling media gateways connected to the public switched telephone network (PSTN). [ 1 ]
Media streaming functions such as echo cancellation, DTMF, and tone sender are also located in the media gateway. [1] Media gateways are often controlled by a separate Media Gateway Controller which provides the call control and signaling functionality. Communication between media gateways and Call Agents is achieved by means of protocols such ...
The Gateway Control Protocol (Megaco, H.248) is an implementation of the media gateway control protocol architecture for providing telecommunication services across a converged internetwork consisting of the traditional public switched telephone network (PSTN) and modern packet networks, such as the Internet.
A media gateway controller function (MGCF) is a SIP endpoint that interfaces with the SGW over SCTP. It also controls the resources in a Media Gateway (MGW) across an H.248 interface. A media gateway (MGW) interfaces with the media plane of the CS network, by converting between RTP and PCM.
Network-based Call Signaling (NCS) is a profile of the Media Gateway Control Protocol (MGCP) for use in PacketCable applications for voice-over-IP.. A network implementing NCS is designed according to the media gateway control protocol architecture for interconnecting a packet network with the traditional public switched telephone network (PSTN).
At the turn of the 21st century with IP Multimedia Subsystem (IMS), the softswitch element is represented by the media gateway controller (MGC) element, while the term softswitch is rarely used in the IMS context, where it is called an access gateway control function (AGCF).
The MSC Server is standards-based and communicates with other distributed elements using industry open standards such as media gateway control protocol, megaco/H.248, Session Initiation Protocol, M2UA and M3UA. The MSC server incorporates industry standards as defined by ETSI, ITU, GSM, 3GPP and 3GPP2 and other leading standard bodies.