Matrix ETERNITY NE System Manual
365
Call Back on Trunk Ports
What's this?
The feature Call Back on Trunk Ports is used to respond to missed calls from particular numbers on the different
trunk ports of ETERNITY: Two-wire Trunks, Mobile trunks and SIP Trunks.
When the Call Back feature is enabled on a trunk port, and there is a missed call on that trunk port, the ETERNITY
determines if the calling number is eligible for a call back or not. It calls back the same number or an alternative
number configured for that number, either from the port on which it was received or from a different port, depending
on the configuration. ETERNITY can be configured to choose the most cost effective line to call back the missed
call numbers.
Employees at remote locations can use this feature to have the ETERNITY installed in their office call them back,
thereby saving on charges (e.g. roaming charges on mobile calls), where applicable.
How it works
For this feature to work:
•
Call Back must be enabled on the desired Trunk Port(s).
•
The ‘Call Back Timer’ may be configured. When the caller disconnects within the Call Back Timer, the Call
Back will be applied for that number.
•
You must define ‘Call Back to’, i.e. you must select whether the number which must be called back should
be the same CLI number as on the received call or an alternative number.
•
The CLI of those callers whom the system should call back as well must be configured in a List. Also, if you
want the call back to be made to an alternative number, the alternative number must also be configured in
a list.
•
You must select the trunks through which the call back should be made. If necessary, you may enable
Least Cost Routing on the outgoing trunks you selected for call back.
•
Select a ‘Call Back Mode’, i.e. how the call should be routed when the call back is answered by the remote
party; whether it should be routed as Operator, DID, or DISA.
Following is an example of a Call Back on a mobile port, when the above parameters are configured.
•
Caller A calls mobile port 1.
•
The system checks if the Call Back is enabled on mobile port 1.
•
The flag is enabled.
•
The system matches the CLI of A with the Call Back profile assigned to the mobile port 1 to determine if
the calling number is eligible for a call back.
•
A match is found in the list configured in the Call Back profile.
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