| Patent Number |
Title Of Patent |
Date Issued |
| 4727357 |
Compact keyboard system |
February 23, 1988 |
| A compact keyboard for entry of alphanumeric data or other characters into a computerized system. A character formation key on the keyboard is formed by a plurality of bars which are capable of being activated for providing light. These bars are arranged in a mosaic pattern with several |
| 4701950 |
Telephone answering system with line detector |
October 20, 1987 |
| A telephone answering system for use in conjunction with a PBX/CENTREX system for answering incoming calls directed to any of the extension lines within the system. The telephone answering system includes an operator control station and a line detection system. The line detection system |
| 4672660 |
Method and system for identifying telephone callers |
June 9, 1987 |
| An apparatus is disclosed for identifying who is placing a call to a telephone prior to answering. The apparatus, which is preferably located at the telephone central office, includes a switching matrix having a plurality of DID access lines coupling the switching matrix to the central |
| 4634811 |
Call screening system |
January 6, 1987 |
| A call screening system to be added onto and used with a PBX or Centrex telephone system having an attendant answering console. The call screening system enables incoming calls for various telephone extensions to be directed to another telephone extension in the system for screening such |
| 4629831 |
Series connected interceptor |
December 16, 1986 |
| The series connected interceptor is a control system for assisting in providing improved service operations for a PBX system. This control system is connected in series in a DID trunk between a TELCO central office and a PBX. By the nature of where it is connected and its function, t |
| 4527011 |
Call concentrator with automatic line supervisor |
July 2, 1985 |
| An automatic line supervisor is disclosed for a telephone system having a line concentrator which converges a plurality of subscriber lines into a single output line to a telephone answering service (TAS) which is coupled to the concentrator by a telephone line with automatic ring down ( |
| 4503290 |
Automatic line supervisor for use with a call concentrator |
March 5, 1985 |
| An automatic line supervisor is disclosed for a telephone system having a line concentrator which converges a plurality of subscriber lines into a single output line to a telephone answering service (TAS) which is coupled to the concentrator by a telephone line with automatic ring down ( |
| 4401856 |
Control system for handling direct inward dialed telephone calls |
August 30, 1983 |
| A control system for enabling direct inward dialed telephone calls received on a single access line from a telephone central office to be answered with identity. The single access line is coupled at the telephone central office to a block of telephone numbers, and incoming calls to any o |
| 4355207 |
Telephone answering system |
October 19, 1982 |
| The telephone answering system includes a call concentrator capable of coupling a plurality of subscriber telephone lines to a single answering station. The concentrator is coupled to the plurality of subscriber lines and transfers calls to such lines one at a time through a single talk |
