
14205603-IG, Edition 3.0
July 2017, Original document
12
Note:
The Call Forward Unconditional feature can be activated permanently at subscription
time by the service provider. By modifying the Rerouting Calling Search Space option,
this will provide the sufficient rights for the handset to action the CFU on the CUCM.
The Directory Number Configuration page defines some fields that let one set calling
search spaces associated with call forwarding: Call Forward All Calling Search Space,
Call Forward Busy Calling Search Space (internal and external), Call Forward No
Answer Calling Search Space (internal and external), Call Forward No Coverage Calling
Search Space (internal and external). Using these fields, one can forward a user's calls
to destinations the user could not normally call directly. Conversely, the user can be pre-
vented from forwarding calls to certain destinations, even if the user could normally dial
such destinations directly.
One can configure calling search space for Forward All, Forward Busy, Forward No
Answer, Forward No Coverage, and Forward on CTI Failure directory numbers. The
value that one chooses applies to all devices that are using this directory number. It must
be configured either primary Forward All Calling Search Space or Secondary Forward
All Calling Search Space or both for Call Forward All to work properly.
If the system is using partitions and calling search spaces, it is recommended to configure
the other call forward calling search spaces as well. When a call is forwarded or redir-
ected to the call forward destination, the configured call forward calling search gets used
to forward the call. If the forward calling search is none, the forward operation may fail if
the system is using partitions and calling search spaces.
Spectralink IP-DECT Server 400/6500 and Spectralink DECT Server 2500/8000 Interoperability Guide