Using the soft keys on the top of the phone press the Prog key.
Press the Cfwd key.
Using the soft keys again, select the call forward condition you wish to set – All, Both, Busy, N/A for No-answer or B/NA for Busy and No-answer.
Select the SET key.
Enter the extension that you wish to forward your calls to, or enter the mobile/external number prefixing with a 9… for example 908008404181
Press the hold key to confirm.
Press the Speaker key to exit.