Arrangement for digital tone distribution

Details Arrangement for digital tone distribution Arrangement for digital tone distribution

1982-11-22

1984-10-30

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 63, H04Q 1104, H04J 1500

Patent

active

044803303

ABSTRACT:
An arrangement for the distribution of digital service tones in a distributed processor digital switching network is shown. These service tones are distributed between the time stages of the digital switching network with a minimum of interprocessor communication. This is accomplished by transmitting the particular service tone, from the terminating time stage which detects the need for tone application, through the switching network paths already established for voice communication. These service tones include such tones as reorder tone, dial tone, busy tone, DTMF tones, MF tones and ringback tone.

REFERENCES:
patent: 4170718 (1979-10-01), Miyazaki et al.
patent: 4178483 (1979-12-01), Lager et al.
patent: 4254498 (1981-03-01), Tawara et al.
patent: 4360911 (1982-11-01), Hardy
patent: 4380064 (1983-04-01), Ishikawa et al.

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