| 5982858 |
System for providing automatic voice messaging in a digital network environment |
Howard E. Carter, Joel A. Pugh |
1999-11-09 |
| 5694456 |
System for providing automatic voice messaging in a digital network environment |
Howard E. Carter, Joel A. Pugh |
1997-12-02 |
| 5646980 |
System for providing automatic voice messaging in a digital network environment |
Howard E. Carter, Joel A. Pugh |
1997-07-08 |
| 5381465 |
System for providing automatic voice messaging in a digital network environment |
Howard E. Carter, Joel A. Pugh |
1995-01-10 |
| 5036533 |
System for providing automatic voice messaging in a digital network environment |
Howard E. Carter, Joel A. Pugh |
1991-07-30 |
| 4901341 |
Method and apparatus for caller-controlled receipt and delivery of voice messages |
Howard E. Carter, Joel A. Pugh |
1990-02-13 |
| 4825460 |
Line interface unit for caller-controlled receipt and delivery of voice messages |
Howard E. Carter, Joel A. Pugh |
1989-04-25 |