Grandstream Networks GXP21 Series

Figure 71: Screenshots
Users need to click on “Download” to view the screenshot
Call Features
The GXP2130/GXP2140/GXP2160/GXP2170/GXP2135 supports traditional and advanced telephony features including caller ID,
caller ID with caller Name, call forward etc.
*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.
*50
Disable Call Waiting
Off hook the phone;
Dial *50.
*51
Enable Call Waiting
Off hook the phone;
Dial *51.
*67
Call with Caller ID Blocked (per call)
Off hook the phone;
Dial *67 and then enter the number to dial out.
*82
Call with Caller ID Enabled (per call)
Off hook the phone;
Dial *82 and then enter the number to dial out.
*70
Call with Call Waiting Disable (per call)
Off hook the phone;
Dial *70 and then enter the number to dial out.
*71
Call with Call Waiting Enabled (per call)
Off hook the phone;
Dial *71 and then enter the number to dial out.