Linksys SPA1001 Administrator User Manual page 120

Line Tab
SIP 100REL Enable
EXT SIP Port
Auth Resync-Reboot
SIP Proxy-Require
SIP Remote-Party-ID
SIP GUID
Linksys IP Phone Administrator Guide
5-36
To enable the support of 100REL SIP extension for reliable transmission of provisional
responses (18x) and use of PRACK requests, select yes. Otherwise, select no.
The default is no.
The external SIP port number.
If this feature is enabled, the Linksys IP phone authenticates the sender when it receives
the NOTIFY resync reboot (RFC 2617) message. To use this feature, select yes.
Otherwise, select no.
The default is yes.
The SIP proxy can support a specific extension or behavior when it sees this header from
the user agent. If this field is configured and the proxy does not support it, it responds
with the message, unsupported. Enter the appropriate header in the field provided.
To use the Remote-Party-ID header instead of the From header, select yes. Otherwise,
select no.
The default is yes.
(Not in PAP2T) The Global Unique ID is generated for each line for each device. When
it is enabled, the Linksys IP phone adds a GUID header in the SIP request. The GUID is
generated the first time the unit boots up and stays with the unit through rebooting and
even factory reset. This feature was requested by Bell Canada (Nortel) to limit the
registration of SIP accounts.
The default is yes.
Chapter 5 Linksys ATA Field Reference
Document Version 3.2