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ABNF Notation
ABNF for SIP Headers
(88 of 93)
SIP Header — Unsupported
Section 20.40 of RFC 3261
and
ABNF in RFC 3261
Unsupported
=
"
Unsupported
"
HCOLON
option‑tag
*(
COMMA
option‑tag
)
; example:
;
Unsupported: 100rel