Apparatus and method for controlling access to a telephone

Details Apparatus and method for controlling access to a telephone Apparatus and method for controlling access to a telephone

1993-08-02

1995-09-26

Dwyer, James L.

Telephonic communications

Call or terminal access alarm or control

At switching center

379196, H04M 166

Patent

active

054540330

ABSTRACT:
An apparatus and method is provided for limiting the connection time of selected telephone lines in a private branch exchange (PBX) telephone system to telephone numbers dialed therefrom. A maximum connection time is programmed into the system for selected lines. Calls are automatically terminated if the duration of the call exceeds the maximum time. The selected line is prevented from re-dialing the called number for a certain period of time. If desired, the selected telephone line is automatically enabled and disabled by the system at predetermined times. The telephone system may also incorporate other conventional features for certain ones of the telephone lines in the PBX system, including limited prefix dialing capabilities, limited area code dialing capabilities, blocking of incoming calls, and the like.

REFERENCES:
patent: 4346264 (1982-08-01), Sharvit
patent: 4511765 (1985-04-01), Kuo
patent: 4656657 (1987-04-01), Hunsicker
patent: 4924499 (1990-05-01), Serby
patent: 4993062 (1991-02-01), Dula et al.
Hello Direct Catalog, 1991, p. 38.

Affiliated with

Also associated with

Rating

Apparatus and method for controlling access to a telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling access to a telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling access to a telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1556928