User's Manual

FIRMWARE 1.0.3.4 GXW42XX USER MANUAL PAGE 41 OF 56
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
Defines whether the incoming messages will be validated.
Check SIP User ID
for Incoming
INVITE
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming INVITE. If it
doesn't match the phone's SIP User ID, the call will be rejected. Direct IP calling will also be
disabled.
Accept Incoming
SIP from Proxy
Only
If set to "Yes", SIP User ID will be checked in the Request URI of the incoming INVITE. If it
doesn't match the phone's SIP User ID, the call will be rejected. Direct IP calling will also be
disabled.
Authenticate
Incoming INVITE
If set to "Yes", the phone will challenge the incoming INVITE for authentication with SIP 401
Unauthorized response.
Fax Settings
Fax Mode
T.38 (Auto Detect) FoIP by default, or Pass-Through (must use codec PCMU/PCMA)
Fax Tone
Detection Mode
Default is Callee. This decides whether Caller or Callee sends out the re-INVITE for T.38 or
Fax Pass Through.
Send Re-INVITE
After Fax
Completion
Default is No, If set to “Yes”, device will send an INVITE with audio vocoders upon completition
of Fax to continue session in audio only.
Send Re-INVITE
After Fax Tone
If set to “Yes”, device will send an Re-INVITE after Fax tone is detected, disabling will only work
under Broadsoft feature.
Enable Silence
Detection for Fax
Disconnect
For fax machines that do not send a Disconnect when fax is done. This option
Enables/Disables the detection of silence in order to know the fax has finished. The silence
period is non-configurable and fixed to 7 seconds.
Audio Settings