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SIP  SIP‑URI  SIP Headers  SIP P‑Headers  SDP  Generic URI  ABNF Notation
SIP/SIPS  userinfo  hostport  uri‑parameters  headers  absoluteURI  tel‑URI

ABNF for SIP/SIPS URI — absoluteURI

see  ABNF in RFC 3261

absoluteURI =
scheme  ":"  ( hier‑part /  opaque‑part )
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scheme =
ALPHA  *( ALPHA /  DIGIT /  "+" /  "-" /  "." )
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hier-part =
( net‑path /  abs‑path )  [ "?"  query ]
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net-path =
"//"  authority  [ abs‑path ]
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abs-path =
"/"  path‑segments
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query =
*uric
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authority =
srvr /  reg‑name
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srvr =
[  [ userinfo  "@" ]  hostport ]
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reg-name =
1*( unreserved /  escaped /  "$" /  "," /  ";" /  ":" /  "@" /  "&" /  "=" /  "+" )
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path-segments =
segment  *( "/"  segment )
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segment =
*pchar  *( ";"  param )
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param =
*pchar
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pchar =
unreserved /  escaped /  ":" /  "@" /  "&" /  "=" /  "+" /  "$" /  ","
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opaque-part =
uric-no-slash  *uric
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uric =
reserved /  unreserved /  escaped
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uric-no-slash =
unreserved /  escaped /  ";" /  "?" /  ":" /  "@" /  "&" /  "=" /  "+" /  "$" /  ","
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