User guide

Forwarding Calls
19
forwards to user B, who then forwards to user C. A call for user A is then directly
signalled to user C.
The system prevents call forwarding chains from forming a loop, e. g. when the call
forwarding destination refers back to the call forwarding source. When the system
detects a call forwarding loop, no further call forwarding is carried out. This can
mean that – despite call forwarding being programmed – calls are nonetheless
signalled on your device.
Contact your system administrator if call forwarding is not functioning as
expected on your device. The system administrator is able to analyse call for-
warding chains and eliminate any possible conflicts.
6.1 Call Forwarding “Immediately”
For internal and external calls
On:
H*21* (external access code, e.g. 0) Z (destination no.) #
Off:
H#21#
Only for internal calls
On:
H*211* (external access code, e.g. 0) Z (destination no.) #
Off:
H#211#
Only for external calls
On:
H*212* (external access code, e.g. 0) Z (destination no.) #
Off:
H#212#
Calls (only internal, only external or all of them) are immediately forwarded to
another telephone and not signalled at all on the telephone originally dialled. If
you have activated call forwarding “immediately”, you will hear a special dialling
tone when you lift the handset.