Communication system having a first and second communication pro

Details Communication system having a first and second communication pro Communication system having a first and second communication pro

1988-11-29

1991-03-19

Ng, Jin F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 97, 358436, H04M 1100

Patent

active

050017446

ABSTRACT:
Disclosed is a communication system which accommodates at least one central office network line and a plurality of extensions, and which is adapted to control line connection between the central office network line and the plurality of extensions. When a call from the central office network line is detected, it is determined in response to the call whether a control signal characteristic of data communication, such as a CST signal, is being sent by the other party's device. If such a control signal is being sent, a line to which a data processor is connected is selected and connected to the calling line. This makes it possible to connect an information processor and a telephone to a common central office network line, and to connect a call answered by another telephone to a desired information processor rapidly through a simple operation. Accordingly, it is unnecessary to assign a special-purpose central office network line to an information processor. When the information processor is not in use, therefore, another telephone may employ the same line. This improves the efficiency of line utilization.

REFERENCES:
patent: 4340783 (1982-07-01), Sugiyama et al.
patent: 4524244 (1985-06-01), Faggin et al.
patent: 4660218 (1987-04-01), Hashimoto
patent: 4677660 (1987-06-01), Yoshida
patent: 4685123 (1987-08-01), Hsia et al.
patent: 4800439 (1989-01-01), Yoshino
patent: 4815121 (1989-03-01), Yoshida
patent: 4816911 (1989-03-01), Kirsh et al.
patent: 4821312 (1989-04-01), Horton et al.
patent: 4850008 (1989-07-01), Berg et al.
M. Setoguchi, "Facsimile Data Converter Applied to Various Data Communications Services , JTR, Jan. 1987, pp. 22-28.

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