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ABNF Notation
ABNF for SIP Private Headers
(4 of 33)
SIP Header — P-Asserted-Service
RFC 6050
–
Section 4.1
See also:
P‑Preferred‑Service
PAssertedService
=
"
P‑Asserted‑Service
"
HCOLON
PAssertedService‑value
PAssertedService-value
=
Service‑ID
*(
COMMA
Service‑ID
)
Service-ID
=
"
urn:urn‑7:
"
urn‑service‑id
urn-service-id
=
top‑level
*( "
.
"
sub‑service‑id
)
top-level
=
let‑dig
[ *26
let‑dig
]
sub-service-id
=
let‑dig
[ *
let‑dig
]
let-dig
=
ALPHA
/
DIGIT
/ "
-
"