Release cause table for failed calls in SS7/ISDN Networks

Details Release cause table for failed calls in SS7/ISDN Networks Release cause table for failed calls in SS7/ISDN Networks

1995-05-10

1997-06-24

Kuntz, Curtis

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of centralized switching system

379 10, 379221, 379230, 370 16, 370217, 370236, 370252, H04M 308, H04M 322, H04M 700, H04J 314

Patent

active

056423969

ABSTRACT:
A plurality of release action tables are maintained in the switching nodes of a telecommunication network, e.g SS7, ISDN, one table for each trunk group. The table indicates desired actions or treatments to be taken for failed calls, each identified by a cause condition. Upon receiving a cause condition expressed as a code at a switching node, a release action table index is accessed to identify the release action table for the trunk group experiencing the cause condition. The cause code is compared against entries in the release action table by a control program included in the switching node. Based upon such comparison, the table indicates to the network the corrective action to be taken to remedy the failed call condition. Changes to the network for failed call conditions are accomplished by altering the data in the release action table rather than changing network.

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