User's Manual

Grandstream Networks, Inc. GXP1100/1105 User Manual Page 11 of 28
Firmware version: 1.1 Last Updated: 06/2011
*71 Enable Call Waiting (per Call)
*72 Unconditional Call Forward
Dial “*72” for a dial tone. Dial the forwarding number followed by “#”. Wait for dial
tone. LCD will display “Call FWD Activated”
*73 Cancel Unconditional Call Forward: dial “*73” and get the dial tone, then hang up
LCD will display “Call FWD Activated”
*90 Busy Call Forward
Dial “*90” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial
tone. Hang up
*91 Cancel Busy Call Forward: dial “*91”. Wait for dial tone. Hang up
*92 Delayed Call Forward
Dial “*92” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial
tone. Hang up. LCD will display “Call FWD Activated”
*93 Cancel Delayed Call Forward
Dial “*93” for a dial tone, then hang up