user manual
Grandstream Networks, Inc. GXV3175 USER MANUAL   Page 45 of 119 
   FIRMWARE VERSION 1.0.0.32  Updated : 12/2010 
into the phone. 
Firmware File Postfix  This field enables your ITSP to lock firmware updates. If configured, only the 
firmware with the matching encrypted postfix will be downloaded and 
flashed into the phone. 
Config File Prefix  This field enables your ITSP to lock configuration updates. If configured, 
only the configuration file with the matching encrypted prefix will be 
downloaded and flashed into the phone. 
Config File Postfix  This field enables your ITSP to lock configuration updates. If configured, 
only the configuration file with the matching encrypted postfix will be 
downloaded and flashed into the phone. 
DHCP Option 66 override 
Server 
The Default setting is YES. If DHCP option 66 is enabled on the LAN side, 
the TFTP server can be redirected. Please be very careful when configuring 
this as the redirection could break the phone if this happens during the 
firmware upgrade. 
Automatic Upgrade  The default value is NO. Choose “YES” to enable automatic HTTP upgrade 
and provisioning. 
Period time of upgrade 
checking 
Specifies the time period to check for firmware upgrade. The default setting 
is 10080 minutes ( 7 days) 
Hour of the day (0-23) 
Defines the hour of the day to check the HTTP/TFTP server for firmware 
upgrades or configuration files changes. 
Day of the week (0-6)  Defines the day of the week to check the HTTP/TFTP server for firmware 
upgrades or configuration files changes. 
Automatic Upgrade Rule  Defines the rules for automatic upgrade: Always Check, when F/W 
suffix/prefix changes, Skip the Firmware Check.   
Authenticate Conf File  Authenticate configuration file before acceptance. The Default setting is NO.
Factory Reset  Restore to factory default settings. Users can choose from: Full Reset, VoIP 
Data Reset, and User Data Reset. After the selection is made, press the 
“Reset” button to factory reset the phone.   
NOTE: Users can use the backup/restore functionality of the phone prior to 
the factory reset.   
Maintenance/Syslog 
Syslog Server  The URL/IP address for the syslog server.   
Syslog Level  Select the level of logging for syslog. The default setting is NONE. 










