User's Manual
Grandstream Networks, Inc. GXV3140 USER MANUAL  Page 34 of 83 
 FIRMWARE VERSION 1.0.1.18 Updated : 09/2009 
Account/SIP Settings 
SIP Registration  Selects whether or not the GXV3140 will send a SIP Register message to the 
proxy; The default setting is YES. 
Unregister On Reboot  If set to YES, the SIP user registration messages will be cleared on reboot. 
The default setting is YES. 
Register Expiration (m) 
This defines the expiration time of the registration in minutes. The default value 
is 50 minutes; the maximum value is 65535 minutes (approximately 45 days) 
and the minimum value is 5 minutes. 
Wait Time Retry 
Registration (s) 
The wait time for registration retry if registration fails. The default is set to 20 
Seconds. 
Local SIP Port  The local SIP port for sending and receiving data. The default settings for 
Account 1/2/3 are 5060/5062/5064. 
Subscribe for MWI  Default is set to No. When selected, a SUBSCRIBE for Message Waiting 
Indication will be sent out periodically. 
Session Expiration (s)  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 (s)  The minimum session expiration (in seconds). The default value is 90 seconds. 
UAC Specify Refresher  As a Caller, select UAC to use the phone as the refresher, or select UAS to use 
the Callee or proxy server as the refresher. 
UAS Specify Refresher  As a Callee, select UAC to use the caller or proxy server as the refresher, or 
select UAS to use the phone as the refresher. 
Force INVITE  The Session Timer can be refreshed using the INVITE or UPDATE methods. 
Select “Yes” to use the INVITE method to refresh the session timer 
Caller Request Timer  The default setting is Yes. If Yes is selected, the phone will use the session timer 
when it makes outbound calls if remote party supports session timer. 
Callee Request Timer  If Yes is selected, the phone will use the session timer when it receives inbound 
calls with session timer request. 
Force Timer  If Yes is selected, the timer will be activated even if the other party does not 
support session timers. If No is selected, the timer will be activated only if the 
other party supports the timer. To disable the timer, Caller Request timer, Callee 
request timer and Force Timer should all be set to No.   
SIP Transport  Selects the SIP transport method. There are three types: TCP, UDP and TLS. 
Symmetric RTP  Selects whether or not RTP is supported.   
Support SIP Instance 
ID 
Selects whether or not SIP Instance ID is supported.   
Validate Incoming This configuration selects whether or not the incoming messages should be 










