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ABNF for SIP Private Headers

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SIP Header — P-Charging-Function-Addresses

RFC 7315 – Section 4.5 – Section 5.5

P-Charging-Addr =
"P-Charging-Function-Addresses"  HCOLON  charge‑addr‑params
*( COMMA  charge‑addr‑params )

; example:
; P-Charging-Function-Addresses: ccf=192.1.1.1; ccf=192.1.1.2

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charge-addr-params =
charge‑addr‑param  *( SEMI  charge‑addr‑param )
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charge-addr-param =
ccf /  ecf /  ccf‑2 /  ecf‑2 /  generic‑param
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ccf =
"ccf"  EQUAL  gen‑value
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ecf =
"ecf"  EQUAL  gen‑value
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ccf-2 =
"ccf‑2"  EQUAL  gen‑value
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ecf-2 =
"ecf‑2"  EQUAL  gen‑value
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