Telephone accessory incorporating demand meter for multiple user

Details Telephone accessory incorporating demand meter for multiple user Telephone accessory incorporating demand meter for multiple user

1997-10-17

2000-01-04

Wolinsky, Scott

Telephonic communications

Call or terminal access alarm or control

At substation

379192, 379200, 379445, H04M 166, H04M 300

Patent

active

060118407

ABSTRACT:
The present apparatus is a device interposed between a phone set and a telephone jack. It is secured by a lock and hasp to a post or frame member so that it overshadows and prevents access to a conventional telephone jack and the wall plate surrounding the jack. When locked in place, and connected serially between the phone set and the telephone line, it includes the user to input a PIN number, and to thereby make calls to specified telephone numbers (one or more). A field in memory stores unique PIN numbers for the users and calls numbers, and keeps track of available time not yet used by the N users. By decrementing with each call, the elapsed total time can be tracked. Charges can be controlled by limiting the authorized telephone numbers.

REFERENCES:
patent: 5200995 (1993-04-01), Gaukel et al.
patent: 5274698 (1993-12-01), Jang
patent: 5438612 (1995-08-01), Norimatsu
patent: 5509067 (1996-04-01), Murata
patent: 5745555 (1998-04-01), Mark

Affiliated with

Also associated with

Rating

Telephone accessory incorporating demand meter for multiple user does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone accessory incorporating demand meter for multiple user, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone accessory incorporating demand meter for multiple user will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1078544