If the home station user's PIN is active, simply pressing the
FWD key on the foreign station will switch over the call forwarding function
at the user's home station. This means: if call forwarding is already
activated at the user's home station, it will be deactivated. If
no call forwarding is activated at the user's home station, variable
call forwarding to the foreign station in use will be activated (follow-me).
If the user's home station is a virtual station ("fictitious
user"), an existing call forwarding activation is not only deactivated,
but immediately re-activated to the fixed call forwarding destination
programmed for the user's home station (if programmed). This function
can also be used by users with "real" home stations (depends on COPIN).