RFC 2833
RFC 2833, updated by RFC 4733, describes RTP telephone-event payloads for sending DTMF digits.
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18matching definitions · 1,058 in the dictionary
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RTCP
RTCP exchanges reception statistics and synchronization data for real-time RTP media streams.
View definitionSDP
Session Description Protocol specifies media formats, connection information, and ports during session negotiation.
View definitionSession Border Controller
A session border controller secures and manages SIP signaling and media at VoIP network boundaries.
View definitionSIP 480 Temporarily Unavailable
SIP 480 reports that the called destination is temporarily unavailable.
View definitionSIP 503 Service Unavailable
SIP 503 indicates temporary server unavailability, often due to maintenance or overload.
View definitionSIP Dialog
A SIP dialog is the persistent signaling relationship identified by Call-ID and dialog tags.
View definitionSIP Extension
A SIP extension identifies a user, endpoint, or service within a telephone system.
View definitionSIP Invite
A SIP INVITE requests establishment of a call or multimedia session.
View definitionSIP Proxy
A SIP proxy routes signaling requests between endpoints according to network policy.
View definitionSIP Redirect Server
A SIP redirect server returns alternative contact addresses instead of forwarding the request.
View definitionSIP Registrar
A SIP registrar accepts endpoint registrations and maintains address-to-contact bindings.
View definitionSIP Registration
SIP registration associates a user's address of record with a reachable contact URI.
View definitionSIP Response Code
SIP response codes classify a request outcome: 1xx provisional, 2xx success, 3xx redirection, and 4xx to 6xx failures.
View definitionSIP Transaction
A SIP transaction contains a request and its associated responses.
View definitionSIP URI
A SIP URI identifies a communication endpoint, commonly using the sip:user@domain format.
View definitionSIP User Agent
A SIP user agent is software or a device that initiates and receives SIP signaling.
View definitionSRTP
Secure Real-time Transport Protocol encrypts and authenticates RTP voice or video packets.
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