Enhanced call-waiting service
作者： Sergio M. Brecher
DOI:
关键词: Process (computing) 、 Signal 、 Busy tone 、 Call termination 、 Tone (musical instrument) 、 Service (business) 、 Telecommunications 、 Call waiting 、 Dual (category theory) 、 Engineering
摘要: A process for controlling a telephone switching system is disclosed which gives customer alternative ways of handling an incoming call while that engaged with existing call. The conventional call-waiting modified by permitting the dual tone multifrequency buttons to be operated predetermined short interval after signal given called responsive particular signals keyed. enabled send busy or announcement calling party reroute alternate destination.
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