Multi-user telephone line

Details Multi-user telephone line Multi-user telephone line

1997-01-14

1998-12-01

Tsang, Fan S.

Telephonic communications

Call or terminal access alarm or control

At switching center

379112, 379114, 379182, 379184, 379201, H04M 156, H04M 166, H04M 342

Patent

active

058449787

ABSTRACT:
The present invention provides for a method of restricting access to authorized users of telephone service from a telephone at a particular location which telephone is accessible by more than one individual. The present invention provides for a method of activating a telephone line by entering a valid access code and deactivating the telephone line by entering a second valid code. Calls may not generally be placed from the telephone when the telephone line deactivated. Calls made from the telephone line after the telephone line has been activated by a valid access code will be attributed to the user associated with the access code. The present invention also provides for a method of routing calls which have been designated as escape codes or priority numbers although the telephone line is in a deactivated state. The present invention also provides a method for activating the telephone line by first entering a logon code followed by an access code which is associated with a user. The access codes may be further used to identify users for which toll calls are not permitted. If an authorized user's access code contains a toll restriction indicator, toll calls attempted by the authorized user when logged in under the user's access code will not be routed.

REFERENCES:
patent: 4897870 (1990-01-01), Golden
patent: 5247571 (1993-09-01), Kay et al.
patent: 5392357 (1995-02-01), Bulfer et al.
patent: 5436957 (1995-07-01), McConnell
patent: 5440625 (1995-08-01), Akiyama
patent: 5450479 (1995-09-01), Alesio et al.
"The Intelligent Network Concept", Jean S Doyle et al. IEEE Communications vol. 36 No. 12, Dec. 1988.
"In Rollout in the United States", Peter A. Russo et al. IEEE Communications pp. 56-56, Mar. 1993.
"A Feature--Interaction Benchmark for IN and Beyond", E Jane Cameron et al. IEEE Communications pp. 64-69, Mar. 1993.

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