Programmable call progress tones for a switching system

Details Programmable call progress tones for a switching system Programmable call progress tones for a switching system

1993-04-21

1995-07-25

Dwyer, James L.

Telephonic communications

Centralized switching system

With generating of call associated substation signal

3701102, 3701101, 370 851, 379418, H04M 300

Patent

active

054369649

ABSTRACT:
In accordance with an embodiment of the invention, a method of establishing call progress tones for a switching system having a generic signal generating apparatus, comprising the steps of displaying at least one form on a display and inserting into fields of the form definitions of the cadencing and particular generic signals associated with each call progress tone for a tone plan, temporarily storing the definitions in a memory, compiling the definitions as control signals into object code, storing the object code in a random access memory, and using the object code in the processing of a call by a switching system processor to control provision of particular signals from the generic signal generating apparatus with a particular cadence and signal level to a subscriber or operator.

REFERENCES:
patent: 4616360 (1986-10-01), Lewis
patent: 5127004 (1992-06-01), Lenihan et al.
patent: 5140590 (1992-08-01), Gertsman et al.

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