User's Manual
Grandstream Networks, Inc. GXV3140H USER MANUAL   Page 38 of 146 
 FIRMWARE VERSION 1.0.7.2 Updated : 11/2010 
default setting is set to “Auto”.   
ESSID  This parameter sets the ESSID for the Wireless network. Press “Scan” to 
scan for the available wireless network and add it. Users can also press 
“Add” to add the ESSID directly.   
Security Mode  This parameter defines the security mode used for the wireless network. 
The following are supported: WEP/Shared, WEP/OPEN, WPA PSK TKIP, 
WPA PSK AES, WPA2 PSK TKIP, WPA2 PSK AES. The default setting is 
set to “Disabled”.   
Users will need to enter the corresponding authentication password for the 
security mode.   
Maintenance/Time Settings 
NTP Server 
This parameter defines the URL or IP address of the NTP (Network Time 
Protocol) server. The GXV3140H phone may obtain the date and time from 
the server.   
The default setting is ntp.ipvideotalk.com.   
DHCP Option 42 override 
NTP server 
Select Yes for the user to allow DHCP Option 2 to override the NTP server 
if there is one on the LAN. The default setting is NO. 
Time Zone  This parameter controls the date/time display according to the specified 
time zone. 
Self-Defined Time Zone  This parameter allows the users to define their own time zone.   
Syntax: std offset dst [offset], start [/time], end [/time] 
Default is set to: MTZ+6MDT+5,M3.2.0,M11.1.0, MTZ+6MDT+5 
This indicates a time zone with 6 hours offset with 1 hour ahead which is 
U.S central time. If it is positive (+) if the local time zone is west of the 
Prime Meridian (A.K.A: International or Greenwich Meridian) and negative 
(-) if it is east. 
M3.2.0,M11.1.0 
The 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec) 
The 2nd number indicates the nth iteration of the weekday: (1st Sunday, 
3rd Tuesday…) 
The 3rd number indicates weekday: 0,1,2,..,6( for Sun, Mon, Tues,..,Sat) 
Therefore, this example is the DST which starts from the second Sunday of 
March to the 1st Sunday of November. 
Maintenance/Web & Telnet Access 










