Message arrangement and method for implementing a digital telephone system
November 19, 2010. 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 References 3920912 Usage-sensitive billing arrangement for private branch exchange subscribers Apparatus for dispensing toner particles and sealing the storage chamber thereof Common channel interoffice signaling system Automatic route selection of a private telephone network path on the basis of a public telephone network number Method and apparatus for providing real-time switching of high bandwidth transmission channels Converter for in-band routing and/or origination information Apparatus and method for providing existing 1ESS and 1AESS telephone switching equipment with the capability of using the SS7 protocol PBX transparent ANI and DNIS using VRU Patent #: 5103449 InventorsApplicationNo. 615523 filed on 11/19/1990US Classes:379/399.02, Circuitry to provide a coder and decoder function379/219, PLURAL EXCHANGE NETWORK OR INTERCONNECTION379/225, Multi-PBX interconnection379/229, Interexchange signalling379/231Central office-to-PBX signallingExaminersPrimary: Dwyer, James L.Assistant: Shehata, M. Attorney, Agent or FirmInternational ClassH04M 007/00AbstractA message arrangement and method for interfacing a digital telephone Digital system including a Digital Facility Line Card (DFLC) that connects a user operated Telephone Instrument (DTI) to a stored program operated digital Central Office (CO) system. The message arrangement comprises, a DFLC message processor that generates and transmits to the DTI control messages in response to report messages transmitted by the DTI, following a user activated DTI event. The control messages provide the user with visual and aural DTI operating information. The DFLC message processor further generates and transmits to a CO system central controller, device report messages requesting access to, and network services from the CO system, responsive to call processing report messages from the DTI. The CO system central controller sends device control messages to the DFLC which operates in accordance with the received device control messages to generate and transmit to the DTI, DTI control messages. The DTI control messages instruct the DTI to provide the user with operating information and to collect call processing data from the DTI, for transmission to the DFLC message processor. The DFLC message processor translates the call processing data and generates device report messages, which are transmitted to the CO system. | |
