Telephone information service system using digital and out-of-ba

Details Telephone information service system using digital and out-of-ba Telephone information service system using digital and out-of-ba

1993-09-14

1995-08-22

Hsu, Alpus

Multiplex communications

Wide area network

Packet switching

379 93, H04J 312, H04Q 1104

Patent

active

054447135

ABSTRACT:
A high-speed information service system is provided which uses Primary Rate Interface (PRI) Integrated Services Digital Networks (ISDN) signaling and temporary, "out-of-band" signaling to improve information retrieval capability. ISDN signaling permits electronic addressing of information requested by the subscriber, thereby eliminating the delays which accompany DTMF signal processing. Communications between an information service provider and an individual information source are conducted using out-of-band signaling. That is, call setup and information request are processed using a channel other than the channel which carries data between the information service provider, the information source and the subscriber.

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