Tech-
invite
3GPP
space
IETF
space
SIP
↠
Examples
Grammars
Presence
⇾
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
RFC 8373 – Negotiating Human Language in Real-Time Communications
RFC 8373
–
Section 5.1
a=
hlang‑send
a=
hlang‑recv
Note: no ABNF definitions for theses attributes
;
a=hlang-send:
<a list of one or more language(s)>
;
a=hlang-recv:
<a list of one or more language(s)>