Multiple party telephone control system with random dialing for

Details Multiple party telephone control system with random dialing for Multiple party telephone control system with random dialing for

1992-02-07

1993-02-09

Schreyer, Stafford D.

Telephonic communications

Special services

Conferencing

379 92, 379355, 379205, H04M 356, H04M 1106, H04M 126

Patent

active

051857871

ABSTRACT:
To interface a primary telephone terminal with a vast number of remote terminals through a telephone network, parties at the remote terminals are individually screened to attain a select group. A random digit dialer unit may provide random dialing signals to the telephone network to establish communication with a plurality of connected terminals, as for polling applications. Bridged together, the select group is preliminarily informed of the status of the interface by a voice generator and, accordingly, the multitude of connections are synchronized for the interface. On cue, the select group is coupled to the primary telephone terminal for unilateral communications. Deviations from the unilateral communication include select bilateral communication for a few of the remote terminals and digital communication from the remote terminals by push button as for polling applications. Subjects for interfaces are programmed for selection from a memory.

REFERENCES:
patent: 4635251 (1987-01-01), Stanley et al.
patent: 4845839 (1989-07-01), Katz

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