Automated attendant with direct inward system access

Details Automated attendant with direct inward system access Automated attendant with direct inward system access

1989-05-02

1990-09-04

Brown, Thomas W.

Telephonic communications

With usage measurement

Call traffic recording by computer or control processor

379 88, 379198, 379211, 379233, H04M 338, H04M 350, H04M 1512

Patent

active

049550470

ABSTRACT:
Apparatus (24) for connecting an outside caller (10) to an extension (14) of a local exchange (16) having a direct inward system access (DISA) feature includes a processor (90) and a memory (93) coupled to the processor (90) for storing at least one predetermined security code. A dialing information receiver (58) is controlled by the processor (90) to receive dialing information input from the outside caller (10). A second memory (94) is coupled to the processor (90) and the receiver (58) for storing the dialing information. A transmitter (58) is coupled to the processor (90) and the local exchanger (16) for transmitting second dialing information related to the dialing information to the local exchange (16). The processor may make a correlation between the dialing information and the second dialing information, or the dialing information may be passed through unchanged as the second dialing information. The apparatus preferably employs a standard trunk connection (34) between the apparatus (24) and the local exchange (16).

REFERENCES:
patent: 3614328 (1971-10-01), McNaughton et al.
patent: 3867582 (1975-02-01), Weed et al.
patent: 4371752 (1983-02-01), Matthews et al.
patent: 4582957 (1986-04-01), Hayes et al.
patent: 4696028 (1987-09-01), Morganstein et al.
patent: 4747124 (1988-05-01), Ladd
patent: 4783796 (1988-11-01), Ladd
patent: 4802199 (1989-01-01), Lange et al.

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