Auerswald COMmander 6000 Advanced Information page 578

Settings – Subscriber (scr.)
Profiles
Settings only external calls

External calls to the subscriber are forwarded. Internal calls are not
forwarded.
Settings Cascading
If call forwarding has been configured for the internal destination of an
existing call forwarding, it is possible to reroute already forwarded calls
(cascading).

Calls also will be rerouted to the new call forwarding destination.
During cascading, the PBX memorises the subscribers who have already
been called for this call. If the subscriber is the destination of a call
forwarding again, the call ends with the previous destination.
The caller hears the dial tone until the call is accepted. If the destination is
busy or the maximum call duration has been reached, a busy signal is
issued.

Cascading does not take place. Calls end with the entered destination.
Settings CF on group call

Calls directed to a group in which the subscriber is logged in as
incoming will be forwarded to the CF destination of the subscriber.
CF immediately

Internal and external calls to the subscriber are forwarded immediately
to the entered destination number.
578
Destination number:
COMmander 6000/R/RX - Firmware V7.0D - Advanced Information V19 04/2018