IP Phone User Manual
Grandstream Networks, Inc.  GXP1400/1405 User Manual   Page 12 of 36 
   Firmware version: 1.0.1.83  Last Updated: 08/2011 
ANSWERING PHONE CALLS 
Receiving Calls 
1.  Incoming single call: Phone rings with selected ring-tone. The corresponding LINE flashes in red. 
Answer call by taking Handset  off hook or pressing SPEAKER or HEADSET or by pressing the 
corresponding account LINE button. 
2.  Incoming multiple calls:  When another call comes in while having an active call, the phone will 
produce a Call Waiting tone (stutter tone). Answer the incoming call by pressing its corresponding 
LINE button. The current active call will be put on hold.  
Do Not Disturb 
Do Not Disturb can be enabled/disabled by pressing the MUTE/DND button on the phone. Or users 
could set it from the MENU following the steps below. 
1.  Press the MENU button and scroll down to “Preference”. 
2.  Select “Do Not Disturb” by pressing menu button. 
3.  Use arrow keys to either enable or disable “Do Not Disturb” feature. 
4.  When enabled, there will be a special ‘Do Not Disturb” icon appearing on the display. This will send 
the incoming caller directly to voicemail. 
PHONE FUNCTIONS DURING A PHONE CALL 
Call Waiting/Call Hold 
1.  Hold: Place a call on ‘hold’ by pressing the “HOLD” button. 
2.  Resume: Resume call by pressing the corresponding blinking LINE.  
3.  Multiple Calls: Automatically place ACTIVE call on ‘HOLD’ by selecting another available LINE to 
place or receive another call. Call Waiting tone (stutter tone) audible when line is in use. 
Mute 
1.  During the call, press the MUTE button to enable/disable muting the microphone.  
2.  The “Line Status Indicator” will show “LINEx: TALKING” or “LINEx: MUTE” to indicate whether the 
microphone is muted. 
Call Transfer 
GXP1400/1405 supports both Blind  and Attended  transfer. Also, users could make auto-attended transfer 
when this feature is enabled from web GUI. 
1.  Blind Transfer: Press “TRANSFER”  button, then dial the number and press the #  button to 
complete transfer of active call. 










