Grandstream Networks WP810 User Manual page 51

Unconditional Call Forward. To set up unconditional call forward:
Off hook the phone.
*72
Dial *72 and then enter the number to forward the call.
Press Call softkey or Dial key.
Cancel Unconditional Call Forward. To cancel the unconditional call forward:
Off hook the phone.
*73
Dial *73.
Press Call softkey or Dial key.
Paging Call. To establish a paging call:
Off hook the phone.
*74
Dial *74.
Press Call softkey or Dial key.
Busy Call Forward. To set up busy call forward:
Off hook the phone.
*90
Dial *90 and then enter the number to forward the call.
Press Call softkey or Dial key.
Cancel Busy Call Forward. To cancel the busy call forward:
Off hook the phone.
*91
Dial *91.
Press Call softkey or Dial key.
No Answer Call Forward. To set up delayed call forward:
Off hook the phone.
*92
Dial *92 and then enter the number to forward the call.
Press Call softkey or Dial key.
Cancel No Answer Call Forward. To cancel the delayed call forward:
Off hook the phone.
*93
Dial *93.
Press Call softkey or Dial key.
Table 22: Call Features