Configurable Route Header In Sip Packet; Header - Aastra 6730i Administrator's Manual

header.

• If the call is not forwarded via a registered proxy server - and therefore is not a "Trusted Entity" - the IP phone UI does
not display any trust information contained in the PAI header.
The phones provide the ability for the Administrator to enable or disable the display of P-Asserted Identity (PAI) informa-
tion 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.
Configuration Files
For the specific parameter you can set in the configuration files, see Appendix A, the section,

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.
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.
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,
Configurable Compact SIP Header
The phones provide a feature that allows an Administrator to shorten the length of a SIP packet by using the compact
form. This feature is in accordance with Compact SIP Headers defined in RFC 3261.
For example, the following SIP header is the long format:
Via: SIP/2.0/UDP 10.50.91.2:5060;branch=z9hG4bK571ebe0c;rport=5060;received=10.50.91.2
From: "Unknown" <sip:Unknown@10.50.91.2>;tag=as19d00fc8
To: <sip:1106@10.50.110.54:5060;transport=udp>;tag=916699998
Call-Id: 73cad5456806f3a7768d17e8617279d7@10.50.91.2
CSeq: 102 OPTIONS
The following SIP header is equivalent to the above SIP header, but uses the short (compact) format instead:
v: SIP/2.0/UDP 10.50.91.2:5060;branch=z9hG4bK571ebe0c;rport=5060;received=10.50.91.2
f: "Unknown" <sip:Unknown@10.50.91.2>;tag=as19d00fc8
t: <sip:1106@10.50.110.54:5060;transport=udp>;tag=916699998
i: 73cad5456806f3a7768d17e8617279d7@10.50.91.2
CSeq: 102 OPTIONS
41-001343-02 REV05 – 07.2014
Advanced Operational Features
"P-Asserted Identity (PAI)" on page A-216.
"Route Header in SIP Packet" on page A-217.
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