Grandstream GXP21xx Series User Manual - Manual (Page 41)

FIRMWARE VERSION 1.0.8.4 GXP2120/GXP2110/GXP2100/GXP14xx USER MANUAL Page 39 of 85
The GXP2120/GXP2110/GXP2100/GXP14xx supports traditional and advanced telephony features
including caller ID, caller ID with caller Name, call forward and etc.
Table 10: CALL FEATURES
*30
Block Caller ID (for all subsequent calls)
 Off hook the phone;
 Dial *30.
*31
Send Caller ID (for all subsequent calls)
 Off hook the phone;
 Dial *31.
*67
Block Caller ID (per call)
 Off hook the phone;
 Dial *67 and then enter the number to dial out.
*82
Send Caller ID (per call)
 Off hook the phone;
 Dial *82 and then enter the number to dial out.
*70
Disable Call Waiting (per Call)
 Off hook the phone;
 Dial *70 and then enter the number to dial out.
*71
Enable Call Waiting (per Call)
 Off hook the phone;
 Dial *71 and then enter the number to dial out.
*72
Unconditional Call Forward . To set up unconditional call forward:
 Off hook the phone;
 Dial *72 and then enter the number to forward the call;
 Press OK softkey or SEND key.
*73
Cancel Unconditional Call Forward . To cancel the unconditional call forward:
 Off hook the phone;
 Dial *73;
 Hang up the call.
*90
Busy Call Forward . To set up busy call forward: