Telephony signal transmission over a data communications network
November 14, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesAutomatic mail sending system Telephone call routing and charging system PBX equipment with dial signal modification Routing of network traffic Method and apparatus for caller-controlled receipt and delivery of voice messages System for placement of a long distance telephone carrier point-of-presence and call routing Method and apparatus for providing proactive call services following call completion Routing of network traffic using discrete traffic measurement data Least cost routing method according to information transfer capability of customer premises equipment Private branch exchange system having an automatic optimal route selecting mechanism InventorsApplicationNo. 971095 filed on 11/14/1997US Classes:370/352, Combined circuit switching and packet switching358/409, Synchronization370/428, Store and forward379/93.01Having transmission of a digital message signal over a telephone lineExaminersPrimary: Hsu, Alpus H.Assistant: Ho, Duc Attorney, Agent or FirmInternational ClassesH04L 012/54H04L 012/66 H04M 011/00 H04N 001/36 AbstractA control process controls transmission of digitally encoded messages (DEMs) over a data communications network to allow real-time performance. The control process establishes a communication path which DEMs are sent. The control process can operate according to any data communications protocol, including the protocol native to the communicating device. The control process can establish communication paths based upon least-cost routing determinations. When there is insufficient bandwidth or excessive latency, the control process can choose a secondary path over which to transmit a DEM.Other References
Field of SearchCombined circuit switching and packet switchingStore and forward Converting between protocols Conversion between signaling protocols Using a particular learning algorithm or technique Transmit/receive interaction control Using a particular adaptive filter Assembly or disassembly of messages having address headers Having electronic mail Call traffic recording or monitoring Class of service determination or transmission Dual tone multifrequency (DTMF) receiver With an automatic exchange Electronic mailbox Synchronization Telephone number or address of designator Facsimile control unit | |
