666 Matrix PRASAR UCS System Manual
Call Forward-When Not Registered
What's this?
SIP Phones connected as extensions may fail to register with PRASAR UCS when the network link is down or
when there is power failure. Using the Call Forward-When Not Registered feature, the extension users can have
their calls forwarded even when their extension phone is not registered with PRASAR UCS.
The destination for ‘Call Forward-When Not Registered’ can be an internal number, an external number or the
Voice Mail.
It is also possible to select the types of calls—internal calls only, or trunk calls, or both—to be forwarded to external
numbers.
Call Forward-When Not Registered can be set/canceled by,
• the System Administrator mode.
• SIP phone users from their phones.
Call Forward- When Not Registered can also be set for each Time Zone—Working Hours, Break Hours, Non-
working Hours, by setting Call Forward-When Not Registered - Scheduled.
Call Forward - When Not Registered-Scheduled can be set for more than one Time Zone at a time on the same SIP
phone. It can be canceled individually for a desired Time Zone, or all at once for all Time Zones. A different
destination number can be set for forwarding calls in each Time Zone. For example, the destination number for
non-working hours can be a mobile number and the destination number for working hours can be another
extension number.
When the VARTA AMP100 / ADR100 application is in background, and is a member in a Routing Group or
Department Group, then Call Forward functionality will not be achieved.
Feature Interaction:
• If ‘Call Forward-Unconditional’ and ‘Call Forward-When Not Registered’, have been set on the same SIP
phone. ‘Call Forward-Unconditional’ will have priority over ‘Call Forward-When Not Registered’.
• If ‘Call Forward-Scheduled-Unconditional’ and ‘Call Forward-When Not Registered-Scheduled’, have been
set on the same SIP phone. ‘Call Forward - Scheduled - Unconditional’ will have priority over ‘Call
Forward-When Not Registered-Scheduled’.
How to configure
The Call Forward-When Not Registered feature does not require any specific configuration except:
• ensuring that 'Call Forward' in the “Class of Service (COS)” group in the “Station Basic Feature Template”
applied to the SIP phones.
• if required, selecting the types of calls to be forwarded to the external number. By default, only trunk calls
are forwarded to external numbers. If you want to select a different type of call, configure the parameter
“Allow External Call Forward for” in the Station Advanced Feature Template applied to the SIP phones.
Refer the sub-topic “Station Advanced Feature Template”, under Configuring Extensions.
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