
Matrix SETU ATA211G System Manual 139
Return Call to Original Caller (RCOC)
When an outgoing call made from SETU ATA211G is returned by the called party, the call lands on the port from
which the call was made. The call is then routed according to the incoming call route selection configured in SETU
ATA211G. Now, it is desirable that the returned call be routed to the port that originally made the call. However, if
the port that originally made the call is not configured as the destination for incoming call routing, the returned call
will be routed to a different port instead of the port that originally made the call.
With the Return Call to Original Caller (RCOC) feature, regardless of the incoming call route selection configured in
the system, it is possible to route the call returned by the called party directly to the same port from which the call
was originally made.
How it works?
For this feature to work, it must be enabled on the desired port(s), i.e. the Mobile Port, SIP Trunks.
SETU ATA211G supports three types of RCOC:
1. RCOC - On Busy: When an outgoing call is made from SETU ATA211G, RCOC is set when the called
party is found to be busy.
2. RCOC - On Speech: When an outgoing call is made from SETU ATA211G, RCOC is set when the
called party answers the call.
3. RCOC - On No Reply: When an outgoing call is made from SETU ATA211G, RCOC is set when the
called party does not answer the call.
You can enable any or all three types of RCOC on the Mobile port and SIP trunks.
Here is an example of how this feature works:
• An outgoing call is made from the FXS port (Source Port) of SETU ATA211G.
• The system checks the Outgoing Call Route, and finds the Mobile port as the Destination Port.
• The system checks for the type of RCOC enabled on the Mobile port (Destination Port).
• If RCOC-On Busy is enabled,
• If the called party is found busy, the system stores the record of the outgoing call in an internal
database referred to as the RCOC Table.
• If RCOC-On Speech is enabled,
• when the called party answers the call, the system stores the record of the outgoing call in the RCOC
Table.
• If RCOC-No Reply is enabled,
• when there is no response from called party, the system stores the record of the outgoing call in the
RCOC Table.
• The system stores the following details of the outgoing call in the RCOC Table:
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