Glossary: F

A   B   C   D   E   F   G   H    I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   Flexible Button   Each Flexible button (CO, DSS, PF) button on the telephone and on consoles can be assigned to various feature buttons. The button type limits the assignable features. FWD/DND Forward/Do Not Disturb. Allows users to forward their phones to other extensions on the system, voice mail or an outside line. Do Not Disturb is used to block calls from coming into a users extension.