Systems and methods for multiple mode voice and data communications using intelligently bridged TDM and packet buses and methods for performing telephony and data functions using the same

• US 6,385,194 B2
• Filed: 10/15/1999
• Issued: 05/07/2002
• Est. Priority Date: 10/06/1998
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: Vertical Networks Incorporated (Vertical Communications Incorporated)
• Inventors: Surprenant, Richard, Pickett, Scott K.
• Primary Examiner(s): VINCENT, DAVID ROBERT
• Application Number:
  US09/419,385
• Publication Number:
  US 20010050918A1
• Time in Patent Office: 935 Days
• Field of Search: 370/353, 370/401, 370/402, 370/403, 370/445, 370/395, 370/466, 370/477, 370/352-3, 370/389, 370/419, 370/438, 370/458, 370/498, 710/107, 710/117, 710/124, 710/131
• US Class Current: 370/353
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2859 Point-to-point connection between the data network and the subscribers encapsulation H04L12/4633; virtual LANs H04L12/4641; routing of packets H04L45/00
• CPC Class Codes: H04L 12/2874 Processing of data for distribution to the subscribers
• CPC Class Codes: H04L 12/2881 IP/Ethernet DSLAM
• CPC Class Codes: H04L 12/43 with synchronous transmission, e.g. time division multiplex [TDM], slotted rings
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6459 Multiplexing, e.g. TDMA, CDMA
• CPC Class Codes: H04L 2012/6472 Internet
• CPC Class Codes: H04L 2012/6481 Speech, voice
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 65/1026 at the edge
• CPC Class Codes: H04L 65/103 in the network
• CPC Class Codes: H04L 65/1036 at the edge
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1043 Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04L 67/00 Network arrangements or protocols for supporting network services or applications user-to-user messaging H04L51/00; network arrangements, protocols or services for supporting real-time applications in data packet communications networks H04L65/00
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 : Network security protocols
• CPC Class Codes: H04M 2203/2061 : Language aspects
• CPC Class Codes: H04M 3/2254 : in networks
• CPC Class Codes: H04M 3/42314 : in private branch exchanges
• CPC Class Codes: H04M 3/42323 : PBX's with CTI arrangements
• CPC Class Codes: H04M 3/4936 : Speech interaction details speech recognition per se G10L15/00
• CPC Class Codes: H04M 3/51 : Centralised call answering arrangements requiring operator intervention , e.g. call or contact centers for telemarketing
• CPC Class Codes: H04M 3/533 : Voice mail systems
• CPC Class Codes: H04M 3/54 : Arrangements for diverting calls for one subscriber to another predetermined subscriber based on the calling party profile H04M3/42059; based on location H04M3/42348; based on presence H04M3/42365; to voice mail H04M3/53308
• CPC Class Codes: H04M 3/56 : Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04M 7/006 : Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04M 7/1295 : Details of dual tone multiple frequency signalling
• CPC Class Codes: H04Q 11/04 : for time-division multiplexing H04Q11/0001 takes precedence
• CPC Class Codes: H04Q 2213/13034 : A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/1322 : PBX
• CPC Class Codes: H04Q 2213/13377 : Recorded announcement
• CPC Class Codes: H04Q 2213/13389 : LAN, internet
• CPC Class Codes: H04Q 3/0045 : involving hybrid, i.e. a mixture of public and private, or multi-vendor systems
• CPC Class Codes: H04Q 3/72 : Finding out and indicating number of calling subscriber

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.

Claims

1. An apparatus for controlling voice and data communications in an office, comprising:

an interface to one or more telephone devices, wherein voice communications are provided at least in part with the telephone devices;

a packet bus interface to one or more computers, wherein data communications are provided at least in part with the computers over a packet bus through the packet bus interface;

a wide area network interface, wherein voice and data communications to or from the apparatus are provided from or to one or more telecommunications networks via the wide area network interface;

a processor, wherein the processor controls the apparatus, including the control of voice and data communications over a plurality of communication paths in the apparatus;

at least one TDM bus defining a predetermined number of channels and selectively coupling voice and data communication data streams to and/or from the one or more telecommunications networks, wherein the data streams include data communication data streams from the packet bus that are protocol processed and provided to the one or more telecommunications networks via the at least one TDM bus;

a multiplexing circuit selectively providing data streams to and/or from particular channels of the at least one TDM bus;

a digital signal processing resource (“

DSP”

), wherein the DSP comprises one or more digital signal processing elements, wherein the DSP receives one or more data streams via the multiplexing circuit that are provided to and/or from the at least one TDM bus, wherein, under control of the processor, the DSP selectively taps into a first one of the one or more data streams provided by the multiplexing circuit to and/or from the at least one TDM bus, wherein the first one of the one or more data streams is directed over a first one of the communication paths in the apparatus and provides a voice communication that does not involve signal processing by the DSP while the first one of the one or more data streams is concurrently being processed by the DSP.

2. The apparatus of claim 1, wherein one or more packet buses are coupled to one or more computers external to the apparatus, wherein data streams from the one or more packet buses are coupled to the at least one TDM bus by the multiplexing circuit.

3. The apparatus of claim 2, wherein data streams from the one or more packet buses are processed by the DSP.

4. The apparatus of claim 1, wherein the DSP processes the first one of the data streams for a call to a user, wherein the DSP converts speech in the first data stream to text.

5. The apparatus of claim 4, wherein the text is directed to the user as an electronic message.

6. The apparatus of claim 4, wherein the text is directed to the user as a data file.

7. The apparatus of claim 4, wherein the apparatus includes an electronic mail server, wherein the text is directed to the user as an electronic mail message provided by the electronic mail server.

8. The apparatus of claim 4, wherein the text is transmitted to the particular user over the packet bus.

9. The apparatus of claim 4, wherein the text is transmitted to the particular user over a wide area network.

10. The apparatus of claim 1, wherein the DSP performs a voice or speech recognition process.

11. The apparatus of claim 1, wherein the DSP performs a facsimile or modem call detection process.

12. The apparatus of claim 1, wherein the DSP performs a data compression process.

13. The apparatus of claim 1, wherein the DSP performs a packetizing process, wherein the data stream is processed to be transmitted in the form of one or more packets.

14. The apparatus of claim 1, wherein a predetermined set of users are defined so that data streams for the predetermined set of users is automatically processed by the DSP.

15. The apparatus of claim 14, wherein the predetermined set of users have data streams that are directed into voice mail and concurrently processed by the DSP.

16. The apparatus of claim 15, wherein the processing by the DSP converts the data stream into a form that can be electronically transmitted to the predetermined set of users by a wide area network or a local area network.

17. The apparatus of claim 1, wherein the DSP is coupled to channels of the at least one TDM bus with the multiplexing circuit, wherein the multiplexing circuit controls the DSP so that the DSP may concurrently process the data stream.

18. The apparatus of claim 17, wherein one or more other data streams are coupled from the packet bus to the at least one TDM bus with the multiplexing circuit.

19. The apparatus of claim 17, wherein the one or more other data streams are coupled from the at least one TDM bus to the telecommunications network.

20. The apparatus of claim 18, wherein the DSP processes the one or more other data streams.