SIP SIP‑URI SIP Headers SIP P‑Headers SDP Generic URI ABNF Notation

Session Description Addressing generic rules "a=" SDP Attributes

SDP attributes defined in

3GPP TS 24.229 – IMS

a=3ge2ae a=visited‑realm a=secondary‑realm a=omr‑m‑cksum a=omr‑s‑cksum a=omr‑codecs a=omr‑m‑att a=omr‑s‑att a=omr‑m‑bw a=omr‑s‑bw a=tra‑contact a=tra‑m‑line a=tra‑att a=tra‑bw a=tra‑SCTP‑association a=tra‑media‑line‑number

attribute =/

3ge2ae‑attribute / visited‑realm / secondary‑realm / omr‑m‑cksum / omr‑s‑cksum / omr‑codecs / omr‑m‑att / omr‑s‑att / omr‑m‑bw / omr‑s‑bw

3ge2ae-attribute =

"3ge2ae:" indicator
; see Clause 7.5.2 of 3GPP TS 24.229

indicator =

"requested" / "applied" / token

visited-realm =

"visited‑realm" ":" instance‑number SP realm SP nettype SP addrtype SP connection‑address SP port [ SP rtcp‑port [ SP rtcp‑address ] ] *( SP extension‑name SP extension‑value )
; see Clause 7.5.3 of 3GPP TS 24.229

secondary-realm =

"secondary‑realm" ":" instance‑number SP realm SP nettype SP addrtype SP connection‑address SP port [ SP rtcp‑port [ SP rtcp‑address ] ] *( SP extension‑name SP extension‑value )
; see Clause 7.5.3 of 3GPP TS 24.229

instance-number =

1*DIGIT

realm =

non‑ws‑string

rtcp-port =

"rtcp‑port" SP port

rtcp-address =

"rtcp‑address" SP connection‑address

extension-name =

token

extension-value =

non‑ws‑string

omr-m-cksum =

"omr‑m‑cksum" ":" 1*HEXDIG
; see Clause 7.5.3 of 3GPP TS 24.229

omr-s-cksum =

"omr‑s‑cksum" ":" 1*HEXDIG
; see Clause 7.5.3 of 3GPP TS 24.229

omr-codecs =

"omr‑codecs" ":" instance‑number SP proto 1*( SP fmt )
; see Clause 7.5.3 of 3GPP TS 24.229

omr-m-att =

"omr‑m‑att" ":" instance‑number SP attribute
; see Clause 7.5.3 of 3GPP TS 24.229

omr-s-att =

"omr‑s‑att" ":" instance‑number SP attribute
; see Clause 7.5.3 of 3GPP TS 24.229

omr-m-bw =

"omr‑m‑bw" ":" instance‑number SP bwtype ":" bandwidth
; see Clause 7.5.3 of 3GPP TS 24.229

omr-s-bw =

"omr‑s‑bw" ":" instance‑number SP bwtype ":" bandwidth
; see Clause 7.5.3 of 3GPP TS 24.229

tra-contact =

"tra-contact" ":" nettype SP addrtype SP connection‑address
; see Clause 7.5.4 of 3GPP TS 24.229

tra-m-line =

"tra-m-line" ":" media SP port [ "/" integer ] proto 1*( SP fmt )
; see Clause 7.5.4 of 3GPP TS 24.229

tra-att =

"tra-att" ":" attribute
; see Clause 7.5.4 of 3GPP TS 24.229

tra-bw =

"tra-bw" ":" bwtype ":" bandwidth
; see Clause 7.5.4 of 3GPP TS 24.229

tra-SCTP-association =

"tra‑SCTP‑association" ":" SCTP‑association‑number
; see Clause 7.5.4 of 3GPP TS 24.229

SCTP-association-number =

integer

tra-media-line-number =

"tra‑media‑line‑number" ":" m‑line‑number
; see Clause 7.5.4 of 3GPP TS 24.229

m-line-number =

integer