H.248 Protocol Introduction
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lH.248/MEGACO has been jointly developed within the ITU-T and the IETF. It is named H.248 by the ITU-T and MEGACO by the IETF. lH.248 is a kind of Media Gateway Control Protocol, in separated Gateway model of Soft Switch Network, H.248 protocol is used for the communication between a media gateway controller (MGC) and a media gateway (MGW), implementing the function of the MGC controlling MGWs. lAs one of the application layer protocols in OSI, H.248 protocol supported by three kinds of transport protocol (UDP、SCTP、MTP3B). lAs one of Media Gateway Control Protocols, the H.248 protocol is applied on the Mc interface in UMTS core network. H.248 Protocol Stack H.248 protocol is one of application layer protocol, which can be transported on IP (as shown in Figure a) or ATM (as shown in Figure b). At present we usually use IP transport H.248 protocol.  Thanks. |
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