| Patent Number |
Title Of Patent |
Date Issued |
| 5717742 |
Electronic mail system having integrated voice messages |
February 10, 1998 |
| In a computer network having a plurality of interconnected terminals and a shared memory device for storing digital data, a message handling system for sending and retrieving both voice and text messages over the computer network. A voice message is input either through a phone associate |
| 5517556 |
Call processing system with facsimile processing |
May 14, 1996 |
| An improved telephone call processing apparatus for processing facsimile messages. The facsimile processing apparatus comprises a message control system including a voice control unit (VCU), a control processor unit (CPU), and a telephone line card. Multiple buses including a high speed |
| 5325422 |
PBX telephone call control system |
June 28, 1994 |
| A PBX telephone call control system is disclosed. The system provides a line interface unit connection between a plurality of subscriber line extensions and a private branch exchange (PBX) switching equipment. The call control system appears to the PBX like any other telephone extension |
| 5321745 |
Adaptive efficient single/dual tone decoder apparatus and method for identifying call-progressio |
June 14, 1994 |
| A process for determining the presence of either speech or one of a plurality of expected single-frequency signals on a line includes the steps of measuring the total signal energy on the line; measuring the signal energy present in each one of a plurality of selected separate freque |
| 5319703 |
Apparatus and method for identifying speech and call-progression signals |
June 7, 1994 |
| A method for real-time recognition of speech and call-progression tone energy includes the steps of digitizing an analog signal present on a signal line, correlating N neighboring portions of the digitized signal, performing FFT analysis on the digitized signal, identifying the three |
| 4761807 |
Electronic audio communications system with voice authentication features |
August 2, 1988 |
| An advanced electronic telecommunication system is provided for the deposit, storage and delivery of audio messages. A Voice Message System (10) interconnects multiple private branch exchanges (12) of a subscriber with a central telephone office (22). Individual subscriber users may |
| 4757525 |
Electronic audio communications system with voice command features |
July 12, 1988 |
| An advanced electronic communication system is provided for the deposit, storage and delivery of audio messages. A Voice Message System (10) interconnects multiple private branch exchanges (12) of a subscriber with a central telephone office (22). Individual subscriber users may access |
| 4652700 |
Electronic audio communications system with versatile user accessibility |
March 24, 1987 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both user and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exchanges |
| 4640991 |
Electronic audio communications systems network |
February 3, 1987 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both user and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exchanges |
| 4602129 |
Electronic audio communications system with versatile message delivery |
July 22, 1986 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both users and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exch |
| 4585906 |
Electronic audio communication system with user controlled message address |
April 29, 1986 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both user and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exchanges |
| 4581486 |
Electronic audio communications system with user accessible message groups |
April 8, 1986 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both user and non-users with limited access provided to the non-user under the control of the user. A Voice Message System (10) interconnects multiple private exchanges |
| 4580016 |
Method and apparatus for checking the integrity of a communications channel in a voice store and |
April 1, 1986 |
| Method and apparatus for determining the integrity of a communications channel includes a first communications system connected to a communications channel with a receiving communications system attached to the other end of the chennel. The first communications system generates a dis |
| 4580012 |
Electronic audio communications system with automatic user access features |
April 1, 1986 |
| An advanced electronic telecommunications system is provided for the deposit, storage and delivery of audio messages to both subscribers and non-subscribers with limited access provided to the non-subscriber under the control of the subscriber. A Voice Message System (10) interconnects |
