User's Manual
Grandstream Networks, Inc. GXV3175 USER MANUAL  Page 42 of 60 
 FIRMWARE VERSION 1.0.1.1 Updated : 3/2012 
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 
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 and Telnet Access 
Disable Telnet    The default value is No. If set to YES, the GXV3175 will not allow any telnet 
access to the phone.   
Access Method  This defines the access method for web access: HTTP or secure HTTPS 
protocol. 
Port  This defines the port for web access. By default, HTTP uses port 80 and 
HTTPS uses port 443. This field is for customizable web ports. 
Admin Password  This defines the administrator password for web interface access. Only the 
administrator can configure the “Advanced Settings” and “Account x” pages. 
The password is case sensitive and the maximum password length is 25 
characters. 










