…e an arbitrary number of m= sections (i.e., media descriptions as described in [RFC4566], Section 5.14 ), but an answer must contain the exact same number as the offer. Lastly, while the exact media parameters are only known only after an offer and an answer have been exchanged, …

… ¶ ▲ Table of Contents 1. Introduction The Session Description Protocol (SDP) [ RFC4566 ] provides a general-purpose format for describing multimedia sessions in announcements or invitations. "TCP-Based Media Transport in the Session Description Protocol (SDP)" [ RFC4145 ] specif…

…uction RFC 3388 [ RFC3388 ] specified a media-line grouping framework for SDP [ RFC4566 ]. This specification obsoletes RFC 3388 [ RFC3388 ]. An SDP [ RFC4566 ] session description typically contains one or more media lines, which are commonly known as "m" lines. When a session d…

…xtension-value = 1*(%x01-09 / %x0b-0c / %x0e-3a / %x3c-ff) ; byte-string from [ RFC4566 ] <ALPHA and DIGIT as defined in [ RFC4566 ]> <base64 as defined in [ RFC4566 ]> Example: a=identity:\ eyJpZHAiOnsiZG9tYWluIjoiZXhhbXBsZS5vcmciLCJwcm90b2NvbCI6ImJvZ3Vz\ In0sImFzc2VydGlvbiI6Int…

…uction RFC 3388 [ RFC3388 ] specified a media-line grouping framework for SDP [ RFC4566 ]. This specification obsoletes RFC 3388 [ RFC3388 ]. An SDP [ RFC4566 ] session description typically contains one or more media lines, which are commonly known as "m" lines. When a session d…

…uction RFC 3388 [ RFC3388 ] specified a media-line grouping framework for SDP [ RFC4566 ]. This specification obsoletes RFC 3388 [ RFC3388 ]. An SDP [ RFC4566 ] session description typically contains one or more media lines, which are commonly known as "m" lines. When a session d…

…] defines a two-phase exchange of Session Description Protocol (SDP) messages [ RFC4566 ] for the purposes of establishment of multimedia sessions. This offer/answer mechanism is used by protocols such as the Session Initiation Protocol (SIP) [ RFC3261 ]. Protocols using offer/an…

…echanism to signal the clock source in the Session Description Protocol (SDP) [ RFC4566 ] both for the reference clock as well as the media clock, thus allowing a synchronization context to be defined beyond the one defined by the usage of CNAME source descriptions. 3.1.3 . Impli…

…echanism to signal the clock source in the Session Description Protocol (SDP) [ RFC4566 ] both for the reference clock as well as the media clock, thus allowing a synchronization context to be defined beyond the one defined by the usage of CNAME source descriptions. 3.1.3 . Impli…

…ow. o SIP payloads for session semantics use the Session Description Protocol [ RFC4566 ], whereas the equivalent Jingle payloads use XML child elements of the Jingle <content/> element. However, the Jingle specifications defining such child elements specify mappings to SDP for a…

…] defines a two-phase exchange of Session Description Protocol (SDP) messages [ RFC4566 ] for the purposes of establishment of multimedia sessions. This offer/answer mechanism is used by protocols such as the Session Initiation Protocol (SIP) [ RFC3261 ]. Protocols using offer/an…

…] defines a two-phase exchange of Session Description Protocol (SDP) messages [ RFC4566 ] for the purposes of establishment of multimedia sessions. This offer/answer mechanism is used by protocols such as the Session Initiation Protocol (SIP) [ RFC3261 ]. Protocols using offer/an…

…] defines a two-phase exchange of Session Description Protocol (SDP) messages [ RFC4566 ] for the purposes of establishment of multimedia sessions. This offer/answer mechanism is used by protocols such as the Session Initiation Protocol (SIP) [ RFC3261 ]. Protocols using offer/an…

…-D.ietf-mmusic-data-channel-sdpneg ] in the SDP media descripton (m= section) [ RFC4566 ] describing the SCTP association [ RFC4960 ] used to realize the T.140 data channel. The offerer and answerer MUST include the subprotocol attribute parameter, with a "t140" parameter value, …

… 16000, or 32000. Optional parameters: ptime: SHOULD be a multiple of 20 msec [ RFC4566 maxptime: SHOULD be a multiple of 20 msec [ RFC4566 vbr: variable bit rate - either 'on' 'off' or 'vad' (defaults to off). If on, variable bit rate is enabled. If off, disabled. If set to 'vad…