Fixed call forwarding (FWD), e.g. to the voice mail service, can be
configured for a mobile or "floating" (virtual) user (no advance hardware
provisioning). Whenever floating users identify themselves at a "foreign"
station (remote station), they can have incoming calls routed to the
station by pressing the call forwarding (FWD) key. At the same time,
any messages already stored in the user's mailbox are indicated
by the mailbox LED. When the user deactivates the FWD, the foreign station
reverts to its former operating state and the floating user's fixed
call forwarding to the voice mail service is active again.
This function is possible for "floating" users and for "normal" users
(COSSU value CFSWF must be assigned to user's COS).