Tech-
invite
3GPP
space
IETF
space
SIP
↠
Examples
Grammars
Presence
⇾
SIP
SIP‑URI
SIP Headers
SIP P‑Headers
SDP
Generic URI
ABNF Notation
ABNF for SIP Headers
(81 of 93)
SIP Header — Subscription-State
RFC 6665
–
Section 8.4
See also:
Event
Allow‑Events
Subscription-State
=
"
Subscription‑State
"
HCOLON
substate‑value
*(
SEMI
subexp‑params
)
; example:
;
Subscription‑State: active;expires=60
substate-value
=
"
active
" / "
pending
" / "
terminated
" /
extension‑substate
extension-substate
=
token
subexp-params
=
( "
reason
"
EQUAL
event‑reason‑value
) /
( "
expires
"
EQUAL
delta‑seconds
) /
( "
retry‑after
"
EQUAL
delta‑seconds
) /
max‑rate‑param
/
min‑rate‑param
/
amin‑rate‑param
/
generic‑param
event-reason-value
=
"
deactivated
" / "
probation
" / "
rejected
" / "
timeout
" / "
giveup
" / "
noresource
" / "
invariant
" /
event‑reason‑extension
event-reason-extension
=
token