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Linksys SPA9x2 Phone Administration Guide 98
Network Settings and SIP Settings
Customizing SPA9x2 Extensions
Parameter
Description
SIP Transport Select from UDP, TCP, or TLS.
Defaults to UDP.
SIP Port Port number of the SIP message listening and transmission port.
Defaults to 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.
Defaults to no.
EXT SIP Port The external SIP port number.
Auth Resync-Reboot If this feature is enabled, the SPA9x2 authenticates the sender when it
receives the NOTIFY resync reboot (RFC 2617) message. To use this
feature, select yes. Otherwise, select no.
Defaults to 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.
Defaults to yes.
Referor Bye Delay Controls when the SPA9x2 sends BYE to terminate stale call legs upon
completion of call transfers. Multiple delay settings (Referor, Refer
Target, Referee, and Refer-To Target) are configured on this screen. For
the Referor Bye Delay, enter the appropriate period of time in
seconds.
Defaults to 4.
Refer Target Bye Delay For the Refer Target Bye Delay, enter the appropriate period of time in
seconds.
Defaults to 0.
Sticky 183 If this feature is enabled, the IP telephony ignores further 180
SIP responses after receiving the first 183 SIP response for an
outbound INVITE. To enable this feature, select yes. Otherwise,
select no.
Defaults to no.
Auth INVITE When enabled, authorization is required for initial incoming
INVITE requests from the SIP proxy.
Referee Bye Delay For the Referee Bye Delay, enter the appropriate period of time in
seconds.
Defaults to 0.