Media gateway
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A media gateway is a translation device or service that converts
private branch exchange (PBX) systems. Media gateways enable multimedia communications across packet networks using transport protocols such as Asynchronous Transfer Mode (ATM) and Internet Protocol
(IP).
Because the media gateway connects different types of networks, one of its main functions is to convert between different transmission and coding techniques. Media streaming functions such as
Media gateways are often controlled by a separate
Megaco (H.248) or Session Initiation Protocol
(SIP). Modern media gateways used with SIP are often stand-alone units with their own call and signaling control integrated and can function as independent, intelligent SIP end-points.
Voice over Internet Protocol (VoIP) media gateways perform the conversion between Time-division multiplexing (TDM) voice to a media streaming protocol,[1] such as the Real-time Transport Protocol
, (RTP), as well as a signaling protocol used in the VoIP system.
Mobile access media gateways connect the radio access networks of a public land mobile network
PLMNs
.
See also
References
- ^ a b "What is a Media Gateway? | Ribbon Communications". ribboncommunications.com. Retrieved 2024-04-23.