NG Control Protocol

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In telephony, the '''NG Control Protocol''' ('''NGCP''') is a protocol allows a [[Session Border Controller]] to use advanced features of an [[Real-time_Transport_Protocol|RTP]] proxy such as controlling DTMF, call recording, media and [[Session Description Protocol|SDP]] negotiation<ref></ref>.

The SBC send commands to the RTP proxy using a [[Bencode|bencoded]] message, which is a dictionary of parameters including the command name itself.

==Example==

The following command retrieves a list of the first 32 call IDs currently active on the RTP proxy (here represented as JSON):

{ "command": "list", "limit": 32 }

This message would be bencoded by the SBC and sent as: "d7:command4:list5:limiti32ee".


==See also==
* [[Real-time Transport Protocol]]
* [[Session Description Protocol]]
* [[Session Initiation Protocol]]

==References==
<references />




[[Category:Application layer protocols]]
[[Category:VoIP protocols]]
[[Category:Audio network protocols]]

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