user manual
Grandstream Networks, Inc. GXV3175 USER MANUAL   Page 54 of 119 
   FIRMWARE VERSION 1.0.0.32  Updated : 12/2010 
• 011[2-9]x. - allows international calls starting with 011 
• [3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 
911 
NOTE: In some cases where the user wishes to dial strings such as *123 to 
activate voice mail or other applications provided by their service provider, 
the * should be predefined inside the dial plan feature. An example dial plan 
will be: { *x+ } which allows the user to dial * followed by any length of 
numbers. 
Early Dial  The default setting is NO. Use only if the proxy supports 484 response. 
Refer to Use Target 
Contact 
The default is NO. If set to YES, then for Attended Transfer, the “Refer-To” 
header uses the transferred target’s contact header information. 
Auto Answer  The default setting is NO. If it is set to YES, the GXV3175 will play a “beep” 
sound and answer the phone automatically on the speaker. 
Send Anonymous  If set to YES, the “From” header in the outgoing SIP messages will be set to 
anonymous to block the caller ID from displaying. The default setting is NO. 
Anonymous Call Rejection 
The default setting is NO;If set to YES,any anonymous call will be rejected
(with 486 Busy message) 
Special Feature  Different soft switch vendors have special requirements; therefore users 
may need to select special features to meet these requirements. Users can 
choose from Standard, CBCOM, RNK, China Mobile, ZTE IMS and Mobotix 
depending on their need.   
The default setting is Standard.   
Enable Call Features  The default is set to YES. If it is set to NO, call features are disabled. 
Call Forward 
Unconditional 
Sets the number to forward to unconditionally. 
Call Forward When Busy  Sets the number to forward to when busy. 
Call Forward When No 
Answer 
Sets the number to forward to when no answer. 
Delayed Call Forward 
Wait Time (s) 
The wait time before transferring the call to another extension or to 
voicemail; the default setting is 20 seconds. 
No Key Entry Timeout (s)  Defines the time out duration on no key entry. 
Default setting is 4 seconds. 
Ring Timeout (s)  Defines the time out duration on no answer. 
Default setting is 60 second. 
Transfer on Conference 
Hangup 
Defines whether or not the call is transferred to the other party if the initiator 
of the conference hangs up.   
Default setting is set to No. 










