AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 676)

41-001343-01 Rev 03, Release 3.2.2 6-49
Configurable SIP P-Asserted Identity (PAI)
The IP Phones support a private extension to SIP for Asserted Identity within trusted networks (as
defined in RFC 3325). This feature allows a network of trusted SIP servers to assert the identity of
authenticated users, and verify that phone messages originate from a Trusted Identity. Upon
receiving a message from a caller in the Trusted Network, the IP phone reads the contents of the
P-Asserted-Identity (PAI) header field and displays it on the phone UI.
The phones provide the ability for the Administrator to enable or disable the display of P-Asserted
Identity (PAI) information on the phone using the following parameter in the configuration files:
•
sip pai
Enabling/Disabling P-Asserted Identity (PAI)
Use the following procedure to enable/disable PAI.
Configurable Route Header in SIP Packet
The IP Phones support the following parameter:
•
sip remove route
This parameter enables or disables the addition of the Route header in a SIP packet. Enable this
parameter for outbound proxies that do not support Route headers.
Enabling/Disabling the Route Header in the SIP Packet
Use the following procedure to enable/disable the addition of the Route header in the SIP packet.
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section, “P-Asserted
Identity (PAI)” on page A-248.
Note: When enabled this will break all support for SIP routing, so if
some other device in the network attempts to add itself to the route it will
fail.
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section, “Route Header
in SIP Packet” on page A-248.