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C
F
ALL
EATURES
The GXP21xx supports traditional and advanced telephony features including caller ID, caller ID w/name,
call forward/transfer/park/hold as well as intercom/paging and BLF.
Table 11: GXP21xx Call Features
Key
Call Features
Block Caller ID (for all subsequent calls)
*30
Offhook and dial "*30".
Send Caller ID (for all subsequent calls)
*31
Offhook and dial "*31".
Block Caller ID (per call)
*67
Offhook, dial "*67" and then enter the number to dial out.
Send Caller ID (per call)
*82
Offhook, dial "*82" and then enter the number to dial out.
Disable Call Waiting (per Call)
*70
Offhook, dial "*70" and then enter the number to dial out.
Enable Call Waiting (per Call)
*71
Offhook, dial "*71" and then enter the number to dial out.
*72
Unconditional Call Forward
Offhook, dial "*72". Then enter the number to forward the call. Press OK softkey or
SEND button.
*73
Cancel Unconditional Call Forward
Offhook, dial "*73" and the phone will hang up.
*90
Busy Call Forward
Offhook, dial "*90". Then enter the number to forward the call. Press OK softkey or
SEND button.
*91
Cancel Busy Call Forward
Offhook, dial "*91" and the phone will hang up.
*92
Delayed Call Forward
Offhook, dial "*92". Then enter the number to forward the call. Press OK softkey or
SEND button.
*93
Cancel Delayed Call Forward
Offhook, dial "*93" and the phone will hang up.
Grandstream Networks, Inc.
GXP21xx User Manual
Firmware version: 1.0.1.110
Page 21 of 48
Last Updated: 01/2012
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