| 6,205,211 | Internet Telephony Call Pricing Center |
| 6,426,955 | Internet Telephony Call Routing Engine |
| 6,487,283 | Pricing Center for Internet Protocol Routed Transactions |
| 6,665,271 | System for Real-time Prediction of Quality for Internet-based Multimedia Communications |
| 6,751,652 | Intelligent End User Devices for Clearinghouse Services in an Internet Telephony System |
| 6,996,093 | Architectures for Clearing and Settlement Services Between Internet Telephony Clearinghouses |
| 7,017,050 | Clearinghouse server for internet telephony and multimedia communications |
| 7,203,956 | System and method for the secure enrollment of devices with a clearinghouse server for internet telepony and multimedia communications |
| 7,398,551 | System and method for the secure enrollment of devices with a clearinghouse server for internet telepony and multimedia communications |
| 7,444,407 | Intelligent end user devices for clearinghouse services in an internet telephony system |
| 7,457,283 | Method and system for securely authorized VoIP interconnections between anonymous peers of VoIP networks |
| 7,525,956 | Architectures for clearing and settlement services between internet telephony clearinghouses |
| 7,743,263 | Method and system for routing calls over a packet switched computer network |
| 7,912,067 | Clearinghouse server for internet telephony and multimedia communications |
| 8,185,636 | Intelligent end user devices for clearinghouse services in an internet telephony system |
| 8,238,329 | Method and system for securely authorizing VoIP interconnections between anonymous peers of VoIP networks |
| 8,289,974 | Clearinghouse server for internet telephony and multimedia communications |
| 8,306,020 | Architectures for clearing and settlement services between Internet telephony clearinghouses |
| 8,396,056 | Method and system for routing calls over a packet switched computer network |
| 8,681,781 | Method and system for securely authorizing VoIP interconnections between anonymous peers of VoIP networks |
| 8,909,793 | Intelligent end user devices for clearinghouse services in an Internet telephony system |
| 9,088,628 | Architectures for clearing and settlement services between internet telephony clearinghouses |
| 9,094,418 | Method and system for routing calls over a packet switched computer network |
| 9,094,504 | Clearinghouse server for internet telephony and multimedia communications |
| 9,392,033 | Method and system for securely authorizing VoIP interconnections between anonymous peers of VoIP networks |
| 9,614,971 | Intelligent end user devices for clearinghouse services in an internet telephony system |
