6-48
Linksys SPA9000 Administrator Guide
Document Version 3.01
Chapter 6      SPA9000 Field Reference
Line 1/2/3/4 Tab
 
SIP Settings 
Field Description
SIP Port  Port number of the SIP message listening and transmission port.
The default is 5060. 
SIP 100REL Enable 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.
EXT SIP Port The external SIP port number. 
Auth Resync-Reboot  If this feature is enabled, the SPA9000 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.
SIP Proxy-Require  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.
SIP Remote-Party-ID  To use the Remote-Party-ID header instead of the From header, select yes. Otherwise, 
select no.
The default is yes.
SIP GUID   The Global Unique ID is generated for each line for each device. When it is enabled, the 
SPA9000 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.