SIP Privacy

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Contents

Supported Standards

  • draft-ietf-sip-privacy-04.txt for support of Remote-Party-ID.
  • RFC3323 A Privacy Mechanism for the Session Initiation Protocol (SIP)1
  • RFC3325 Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks2
  • ITU Q.1912.5 Interworking between SIP and BICC/ISUP


[1] Partial support. Support Section 4.1. Constructing Private Messages
[2] Partial support. Doesn't support P-Preferred-Identity.


Acronyms

RPID Remode-Party-ID header
PAID P-Asserted-Identity header
CLI Calling Party Number (ISUP or ISDN)
GN Generic Number for additional calling party number (ISUP ITU)
APRI Address Presentation Restricted Indicator (ISUP) or Presentation indicator (ISDN)
SI Screening Idicator (ISUP or ISDN)

Privacy mapping

ISUP

SS7 param CLI digits CLI APRI CLI SI GN digits GN APRI GN SI
Routing script param {calling} {calling_presentation} {calling_screening} not mapped not mapped not mapped

SIP 'Remode-Party-ID

The RPID URI is filled with {calling}.

The RPID "screen" param is filled according to the following table.

Script params to SIP
{calling_screening} RPID screen param
"unspecified", "pass", "network_provided" screen="yes"
"fail", "no" screen="no"

The RPID "privacy" param is filled according to the following table.

{calling_presentation} RPID privacy param
"unspecified", not_available", "allowed" privacy="off"
"restricted" privacy="full"
"addr_restricted" privacy="uri"
"name_restricted"" privacy="name"
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