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1.28 Networking Features
272 Feature Guide
1.28.3.3 Call Forwarding (CF)—by QSIG
Description
The PBX forwards the call to a destination extension in another PBX in QSIG network. The
destination can be set on your own PBX on an extension basis as the forward destination of
trunk calls ( 1.3.1.2 Call Forwarding (FWD)).
This feature complies with the following European Telecommunication Standard (ETS)
specifications: ETS 300 257 Diversion supplementary services.
If the same trunk group is used for the incoming call and the forwarded call, the following
situation will be possible.
[Example]
Conditions
• This feature can be enabled or disabled on each ISDN (QSIG) port of the PBX.
Extension 1000 of PBX-1
dials extension number
"2000", and the call is sent to
extension "2000" of PBX-2
through QSIG network.
The call is forwarded to the
forward destination of trunk
calls of extension 2000,
which is extension "1001" of
PBX-1.
The call between PBX-1 and
PBX-2 is released, and the
call is connected directly to
the forward destination of
extension 2000.
PBX-1
QSIG
PBX-2
Dials "2000".
PBX-1
QSIG
PBX-2
Extn. 1001 Extn. 2000
Extn. 1001 Extn. 2000
(Forward Destination
of Trunk Calls: 1001)
Call to 2000
1
Forwarded
to 1001
2
3
Extn. 1000
Extn. 1000
1
2
3