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ABNF Notation
ABNF for SIP Headers
(53 of 93)
SIP Header — Proxy-Require
Section 20.29 of RFC 3261
and
ABNF in RFC 3261
Proxy-Require
=
"
Proxy‑Require
"
HCOLON
option‑tag
*(
COMMA
option‑tag
)
; example:
;
Proxy‑Require: sec‑agree