| 摘要 |
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.
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