| Patent No. | Patent Title: |
| 5822407 | Communication apparatus controlled by a remote control signal |
| 5815551 | Telephonic-interface statistical analysis system |
| 5812639 | Message communication via common signaling channel |
| 5809114 | Anonymous interactive telephone system |
| 5799065 | Call routing device employing continuous speech |
| 5793846 | Telephonic-interface game control system |
| 5784437 | Electronic switch connected to intelligent peripheral while permi... |
| 5768348 | Anonymous interactive telephone system |
| 5761276 | Voice mail service apparatus and a controlling method thereof |
| 5754631 | Voice response unit having robot conference capability on ports |
| 5754630 | System and associated method for multiple extension routing via a... |
| 5751790 | Voice information service device and voice information service me... |
| 5751792 | System and method for providing a message system subscriber with ... |
| 5748710 | Method, network, system and devices for central management of spo... |
| 5745553 | On-demand communications services |
| 5740229 | Method and apparatus for a pre-paid return call |
| 5740230 | Directory management system and method |
| 5740242 | Echo canceler |
| 5737408 | Echo cancelling system suitable for voice conference |
| 5737394 | Portable telephone apparatus having a plurality of selectable fun... |
| 5729592 | Calling party identification announcement service |
| 5729593 | Annoucement system and method in a telephone call switching syste... |
| 5727046 | Personal electronic telephone directory apparatus with remote ... |
| 5721763 | Method for providing information during a chat session |
| 5708699 | Hybrid access architecture for voice messaging systems |
| 5699414 | Method and apparatus for sharing a single telephone line between ... |
| 5696812 | Data communication apparatus having a function of recording a voi... |
| 5694456 | System for providing automatic voice messaging in a digital netwo... |
| 5689550 | Interface enabling voice messaging systems to interact with ... |
| 5689555 | Method for transferring a subscriber to a new local service provi... |
| 5687220 | Telephonic voice message transmission control method |
| 5684863 | Telephonic-interface statistical analysis system |
| 5682424 | Telephone mouthpiece protective cover |
| 5675638 | Communications device entry method and apparatus |
| 5668855 | Message management system |
| 5668865 | Echo canceler E-side speech detector |
| 5666401 | Automated attendant call processor |
| 5666403 | Method and apparatus for sharing a single telephone line between ... |
| 5659610 | Battery feed circuit |
| 5657385 | Connecting device for connecting sheathed lines for telephones an... |
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