You may be able to change your 'forward unconditional' settings using the Features menu.
Your IP Office system administrator controls whether you can access this menu.
Procedure
Press the Features soft key if shown.
To do this during a call, press the PHONE key and then press Features.
Use the cursor keys to select Forward.
Use the cursor keys to select Forward Unconditional.
To Switch Forwarding On/Off – Select Forward Unconditional. Press On or Off to change the current setting. If no destination is currently set when you switch 'forward unconditional' on, the display jumps to the destination field.
To Select Which Calls as Forwarded – Select Call type. Press Change to see the different options. When the required option is displayed, press Save. The options are External Only, External and Group, Non Group Calls and All Calls.
To Set the Destination – Select Destination. Either press Edit and enter the number required or press ToVM for the 'forward to voicemail' option.
If your IP Office does not allow you to forward or transfer calls to external numbers, you can only enter another extension number. The Save option is hidden if you enter any other type of number.
If you select voicemail as the destination, to enter a different destination, you first need to switch 'forward unconditional' off.