User's Manual

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GXW42xx User Manual
Version 1.0.5.43
Caller ID Display
When set to “Auto”, the phone will look for the caller ID in the order of
P-Asserted Identity Header, Remote-Party-ID Header and From Header
in the incoming SIP invite. When set to “Disabled”, All incoming calls
are displayed with “Unavailable”.
SIP Settings - Session Timer
Session Expiration
The session timer extension enables SIP sessions to be periodically
“refreshed” via a SIP request (UPDATE, or re-INVITE. When the
session interval expires, if there is no refresh via a UPDATE or re-
INVITE message, the session will be terminated.
Session Expiration is the time (in seconds) at which the session is
considered timed out, if no successful session refresh transaction
occurs beforehand. The default value is 180 seconds.
Min-SE
The minimum session expiration (in seconds). The default value is 90
seconds.
Caller Request Timer
If selecting “Yes” the phone will use session timer when it makes
outbound calls if remote party supports session timer.
Callee Request Timer
If selecting “Yes” the phone will use session timer when it receives
inbound calls with session timer request.
Force Timer
If selecting “Yes” the phone will use session timer even if the remote
party does not support this feature. Selecting “No” will allow the phone
to enable session timer only when the remote party support this feature.
To turn off Session Timer, select “No” for Caller Request Timer, Callee
Request Timer, and Force Timer.
UAC Specify Refresher
As a Caller, select UAC to use the phone as the refresher, or UAS to
use the Callee or proxy server as the refresher.
UAS Specify Refresher
As a Callee, select UAC to use caller or proxy server as the refresher,
or UAS to use the phone as the refresher.
Force INVITE
Session Timer can be refreshed using INVITE method or UPDATE
method. Select “Yes” to use INVITE method to refresh the session timer.
SIP Settings - Security Settings
Validate Incoming Messages
Default is No. Defines whether the incoming messages will be validated.