Automatic interconnection system

Details Automatic interconnection system Automatic interconnection system

1977-03-07

1978-04-25

Cooper, William C.

H04M 354

Patent

active

040864383

ABSTRACT:
Described herein is a system for automatically providing interconnections among a plurality of telephone lines serving a subscriber station all under the control of a remote caller. An incoming call to the system is automatically answered, and the incoming line is then connected to an outgoing line either immediately or in response to tone or pulse dialing signals dialed in by the caller. Upon receipt of dial tone on the outgoing line the caller can dial out a call thereon directly from his remote calling location. If dial tone persists on either line for a predetermined time all lines are automatically disconnected. By dialing his own number on the outgoing line and then hanging up, the caller can have the system call him back on the outgoing line, after which he can dial in control signals on the outgoing line to reconnect it to either the original incoming line or another line to dial out calls thereon. By dialing in control signals the caller can add a third line in a conference connection and reset any interconnection for re-calling thereon without hanging up his phone. All interconnections are through a switched-gain repeater amplifier which is automatically controlled to accommodate the various signaling functions associated with the system. If a caller finds the system in use, he can call another incoming line to place a caller-waiting indication on the interconnection. Call-back and conference add-on can be accomplished only with tone-type dialing signals.

REFERENCES:
patent: 3867582 (1975-02-01), Weed et al.

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