Change DND functionailty

[TomT]

Hi
Is it possible to use the DND Code On and DND Code Off to update the DND Status on our PBX, but NOT enable DND on the phone ?

Ideally I'd like to be able to use the phones DND button and see the DND status image, but I don't want the phone to do any DND... only the PBX.

That way the phone system controls the DND routing not the handset.

Thanks