Patent Number: 6,298,045

Title: 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

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.

Inventors: Pang; Adeline (San Jose, CA), Pickett; Scott K. (Los Gatos, CA)

Assignee: Vertical Networks, Inc.

International Classification: H04Q 3/00 (20060101); H04Q 11/04 (20060101); H04L 12/64 (20060101); H04L 12/43 (20060101); H04L 12/28 (20060101); H04L 12/427 (20060101); H04M 7/00 (20060101); H04M 3/42 (20060101); H04L 29/12 (20060101); H04L 29/06 (20060101); H04M 3/51 (20060101); H04L 29/08 (20060101); H04M 3/50 (20060101); H04Q 3/72 (20060101); H04M 3/56 (20060101); H04M 3/22 (20060101); H04M 3/54 (20060101); H04M 3/533 (20060101); H04L 012/16 ()

Expiration Date: 10/02/2018