Browse Prior Art Database

Full Automatic Intercept System - Switch Subsystem

IP.com Disclosure Number: IPCOM000060822D
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 50K

Publishing Venue

IBM

Related People

Dorak, JJ: AUTHOR [+5]

Abstract

This article describes telephone call switching apparatus for use with telephone company switching office equipment to intercept and respond vocally to calls to out-of-service numbers. Normally, communication between the basic office equipment and the interception processing apparatus is in 2/6 multifrequency (MF) tone form. However, offices, lacking 2/6 MF signalling capability, require costly operator intervention. The present apparatus eliminates such intervention relative to offices which lack 2/6 MF signalling capability but have ordinary push button dual tone MF signalling facilities. The system disclosed herein is illustrated in the drawing in block diagram. It utilizes a flexible switching matrix.

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Full Automatic Intercept System - Switch Subsystem

This article describes telephone call switching apparatus for use with telephone company switching office equipment to intercept and respond vocally to calls to out-of-service numbers. Normally, communication between the basic office equipment and the interception processing apparatus is in 2/6 multifrequency (MF) tone form. However, offices, lacking 2/6 MF signalling capability, require costly operator intervention. The present apparatus eliminates such intervention relative to offices which lack 2/6 MF signalling capability but have ordinary push button dual tone MF signalling facilities. The system disclosed herein is illustrated in the drawing in block diagram. It utilizes a flexible switching matrix. This switching matrix is directed by a microprocessor and necessary support circuitry with overall control coming from an IBM Series/1 processor. An embedded IBM Series/1 processor knows the port of the seized trunk and, therefore by implication, the ability of the originating end to send MF or not. If MF equipped, the IBM Series/1 processor hooks up an MF receiver, and the call proceeds normally. If not equipped for MF, the IBM Series/1 processor notifies a database access processor to prepare a "canned" message, via an audio distribution system (ADS) to tell the subscriber to redial the original number. The switch now hooks up a DTMF receiver to read the telephone dial digits. After receiving these, the call p...