Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses
First Claim
1. A communication system coupled to a wide area communication network comprising a plurality of network resources, the communication system providing voice and data communications to a plurality of users in an office and comprising:
- at least a first packet bus coupled to one or more packet-based devices and adapted for transferring packetized data to and from the system, wherein data are transmitted over the first packet bus in packets;
at least one time division multiplex (TDM) bus coupled to one or more telephony devices and selectively coupled to the first packet bus and the wide area communication network, wherein data are transmitted over the TDM bus in frames, each of the frames having a plurality of slots for transmitting data;
a processor;
a switch/multiplexer coupled to the processor and the TDM bus, wherein the switch multiplexer selectively couples data to and from particular slots of particular frames;
wherein the processor selectively controls voice communications from the one or more telephony devices over the TDM bus and packet-based communications over the first packet bus, wherein voice communications that stay in a circuit-switched from in the system occur over the TDM bus and the wide area communication network, and wherein packet-based communications are protocol-processed and selectively coupled to the wide area communication network via the TDM bus.
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Accused Products
Abstract
Systems and methods by which voice/data communications may occur in multiple modes/protocols are disclosed. In particular, systems and methods are provided for multiple native mode/protocol voice and data transmissions and receptions with a computing system having a multi-bus structure, including, for example, a TDM bus and a packet bus, and multi-protocol framing engines. Such systems preferably include subsystem functions such as PBX, voice mail and other telephony functions, LAN hub and data router. In preferred embodiments, a TDM bus and a packet bus are intelligently bridged and managed, thereby enabling such multiple mode/protocol voice and data transmissions to be intelligently managed and controlled with a single, integrated system. A computer or other processor-includes a local area network controller, which provides routing and hub(s) for one or more packet networks. The computer also is coupled to a buffer/framer, which serves to frame/deframe data to/from the computer from TDM bus. The buffer/framer includes a plurality of framer/deframer engines, supporting, for example, ATM and HDLC framing/deframing. The buffer/framer is coupled to the TDM bus by way of a switch/multiplexer, which includes the capability to intelligently map data traffic between the buffer/framer and the TDM bus to various slots of the TDM frames. Preferably, a DSP pool is coupled to buffer/framer in a manner to provide various signal processing and telecommunications support, such as dial tone generation, DTMF detection and the like. The TDM bus is coupled to a various line/station cards, serving to interface the TDM bus with telephone, facsimiles and other telecommunication devices, and also with a various digital and/or analog WAN network services.
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Citations
41 Claims
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1. A communication system coupled to a wide area communication network comprising a plurality of network resources, the communication system providing voice and data communications to a plurality of users in an office and comprising:
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at least a first packet bus coupled to one or more packet-based devices and adapted for transferring packetized data to and from the system, wherein data are transmitted over the first packet bus in packets;
at least one time division multiplex (TDM) bus coupled to one or more telephony devices and selectively coupled to the first packet bus and the wide area communication network, wherein data are transmitted over the TDM bus in frames, each of the frames having a plurality of slots for transmitting data;
a processor;
a switch/multiplexer coupled to the processor and the TDM bus, wherein the switch multiplexer selectively couples data to and from particular slots of particular frames;
wherein the processor selectively controls voice communications from the one or more telephony devices over the TDM bus and packet-based communications over the first packet bus, wherein voice communications that stay in a circuit-switched from in the system occur over the TDM bus and the wide area communication network, and wherein packet-based communications are protocol-processed and selectively coupled to the wide area communication network via the TDM bus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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19. The system of clam in 17, wherein data communications over the wide area communication network in accordance with the first protocol occur via the TDM bus, wherein data communications over the wide area communication network in accordance with the second protocol occur via the TDM bus.
Specification