user manual
Grandstream Networks, Inc. GXV3175 USER MANUAL   Page 43 of 119 
   FIRMWARE VERSION 1.0.0.32  Updated : 12/2010 
AP/Managed. By default, it is set to “AP or Managed”.   
Channel  This parameter defines the channel (1-10) for the wireless network. The 
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 GXV3175 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. 
Time Display Format  This parameter sets time display format to 12 Hour or 24 Hour 
Date Display Format  This parameter sets date display format to YY-MM-DD or MM-DD-YY or 
DD-MM-YY. 
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 










