Call coverage arrangement

Details Call coverage arrangement Call coverage arrangement

1988-06-14

1989-10-10

Dwyer, James L.

Telephonic communications

Multi-line or key substation system with selective switching...

With special service

379164, 379165, 379210, 379211, H04M 342

Patent

active

048737178

ABSTRACT:
A call coverage arrangement in which coverage personnel are informed of the switch-hook status of covered terminals by way of a single two-part indicator on the coverage terminal. The two-part indicator indicates switch-hook status for any one of a number of covered terminals. The first part of the indicator identifies the covered terminal and the second part defines the switch-hook status of the identified terminal. The arrangement is flexible in providing coverage for additional terminals and in providing coverage via forwarding from any termianl, since there is no need to assign and dedicate status indicators to particular terminals.

REFERENCES:
patent: 4296282 (1981-10-01), O'Neil et al.
patent: 4374308 (1983-02-01), Holesha
patent: 4436962 (1984-03-01), Davis et al.
patent: 4567324 (1986-01-01), Smith et al.
patent: 4741026 (1988-04-01), Baxter et al.
patent: 4790004 (1988-12-01), Nalbone
patent: 4791662 (1988-12-01), Ahnen et al.
AT&T System 85 Features Reference Manual, AT&T 555-102-301, Issue 1, Apr. 1986, pp. 99-1 through 99-2.
SESS.RTM. Switch ISDN Basic Rate Interface Specification 5E4 Generic Program, AT&T 5D5-900-301, Sep. 1985, pp. V-94 through V-105.

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