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| 5926532 | Integrated wireless communication system |
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| 5854833 | Processing using DEF records |
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| 5815560 | Communication service control apparatus |
| 5809120 | Telecommunications network circuit usage measurement |
| 5802123 | Clock signal reproduction circuit and data reproduction circuit |
| 5801340 | Proximity sensor |
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| 5793852 | Method of processing information charge discount rates for servic... |
| 5793853 | System and method for recording billing information for a te... |
| 5787403 | Bank-centric service platform, network and system |
| 5784444 | Method and apparatus for providing personal calling identificatio... |
| 5784443 | Integrated revenue domain for telecommunication networks |
| 5781622 | Two-line apparatus for telephone intercom |
| 5781621 | Microcontroller with a caller identification unit |
| 5778049 | Service engineering template |
| 5774535 | Telecommunication-time metering device utilizable for prepayment ... |
| 5771283 | Method for delivering enhanced caller identification service in a... |
| 5764639 | System and method for providing a remote user with a virtual pres... |
| 5764727 | Metallic access test extender |
| 5761272 | Method of and system for performing telecommunications stress tes... |
| 5757898 | Information processing and communication apparatus |
| 5757894 | Virtual foreign exchange service |
| 5754634 | System and method for tracking and reporting incoming calls |
| 5751800 | Screening of incoming telephone calls prior to call completion to... |
| 5750941 | Ultrasonic coordinates input device |
| 5748722 | Collective-house control system employing an interface circuit fo... |
| 5748717 | Method and system for assigning a communication to a preferred ca... |
| 5748908 | Automated, classified expenditure data card recording system |
| 5748718 | Telephone monitoring system to reduce consumer payments of teleph... |
| 5742667 | Notification of toll free call charging status |
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| 5740213 | Differential charge pump based phase locked loop or delay locked ... |
| 5737400 | Telecommunications system for accessing subscriber premises equip... |
| 5737401 | Full coin box signalling device for use with coin telephones |
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| 5734696 | Testing telecommunications equipment |
| 5732128 | Method and apparatus for storing call feature data |
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