Matrix ETERNITY NE System Manual 645
• If A disconnects within the Call Back Timer, the system applies Call Back for A’s number.
• The system checks the ‘Call Back to’ parameter in the Call Back profile, to determine whether it has to call
back the same number or an alternative number.
• If alternative number is configured as ‘Call Back to’, the system checks the list of alternative numbers. As
the CLI of A matches with the number in the list, the system checks the corresponding alternative number
configured for A’s CLI number.
• The system checks if the number is to be called from the same trunk port or a different group of trunks.
• If the same trunk port is configured, the system will make a call to the number using Mobile Port 1.
• If a different group of trunks has been assigned, the system will check if Least Cost Routing is enabled on
these trunks and accordingly makes the call back.
• When A answers the call, the system checks the type of Call Back Mode enabled in the Call Back Profile
assigned to Mobile Port 1 (the port on which the call back request was made).
Four scenarios are possible:
1. “Auto Attendant” is enabled as Call Back Mode on Mobile Port 1.
• A gets dial tone of SARVAM UCS.
• A can now use Built-In Auto Attendant feature.
2. 'Pin Authentication - Multiple Calls' or 'CLI Authentication - Multiple Calls' is enabled as Call Back Mode
on Mobile Port 1.
• A gets dial tone of SARVAM UCS.
• A can now reach any extension or trunk of SARVAM UCS from DISA Mode.
3. 'CLI Authentication - Single Call' is enabled as Call Back Mode on Mobile Port 1.
• A gets dial tone of another trunk of SARVAM UCS.
• A can make calls from the trunk.
4. ‘Operator’ is enabled as Call Back Mode on Mobile Port 1.
• A gets Ring Back Tone.
• The system lands the call on the Operator extension assigned to Mobile Port 1.
Read the topics “Auto Attendant” and “Direct Inward System Access (DISA)” to know more about the call
respective call logic.
• Since this feature is essential for callers, they must be aware of its functioning, to be able to use it, that
is, disconnect the call within the Call Back Timer. If the caller does not disconnect within the Call Back
Timer, the call will be processed according to the normal incoming call logic.
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