Scaleable network server for low cost PBX

• US 6,728,239 B1
• Filed: 12/30/1999
• Issued: 04/27/2004
• Est. Priority Date: 12/30/1999
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Kung, Fen-Chung, Wang, Spencer, Walker, Hopeton
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US09/475,662
• Time in Patent Office: 1,580 Days
• Field of Search: 370/352-356, 370/401, 370/535, 370/395.1, 370/465, 370/389, 725/111, 725/117, 379/219, 379/231, 379/234, 379/399.01, 379/142.16, 709/200, 709/208, 709/225, 710/100, 710/110, 710/301, 710/313
• US Class Current: 370/352
• CPC Class Codes: H04L 12/4604 LAN interconnection over a backbone network, e.g. Internet, Frame Relay
• CPC Class Codes: H04L 12/5692 Selection among different networks
• CPC Class Codes: H04M 3/42314 in private branch exchanges
• CPC Class Codes: H04M 7/1215 where a cable TV network is used as an access to the PSTN/ISDN
• CPC Class Codes: H04M 7/125 Details of gateway equipment
• CPC Class Codes: H04Q 2213/13003 Constructional details of switching devices
• CPC Class Codes: H04Q 2213/13034 A/D conversion, code compression/expansion
• CPC Class Codes: H04Q 2213/13093 Personal computer, PC
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13196 Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/1322 PBX
• CPC Class Codes: H04Q 2213/13299 Bus
• CPC Class Codes: H04Q 2213/13389 LAN, internet
• CPC Class Codes: H04Q 3/622 Circuit arrangements therefor

Abstract

A scaleable PBX (Private Branch exchange) is provided for use in a powerful, facilities-based, broadband communications system that guarantees voice, data and video communication reliability and security to users for an multimedia system including integrated telephone, television and data network. The scaleable PBX includes one or more broadband gateways. Each broadband gateway may be provided on a slot card (i.e., broadband gateway card) compatible with servers and personal computers (PC). One or more slot cards may be include in a server to provide PBX feature/function capability to a broadband communication system. The server based broadband gateway PBX is scaleable for any size company or facility using, for example, one or more network servers. Alternatively, the broadband gateway card may be installed in a PC and provide a low cost small business or home PBX system.

Claims

1. A device providing PBX services in an integrated broadband communication system, including:

a server including a broadband gateway card coupled to a data bus of said server for providing customer premises PBX services, said broadband gateway card including;

at least one telephone interface coupled to a data bus;

a controller coupled to said data bus for controlling information traffic between said at least one telephone interface and said broadband communication system;

a memory coupled to said data bus; and

a transceiver coupled to said data bus for multiplexing and demultiplexing said information traffic between said broadband communication system and said broadband gateway card, wherein said transceiver is controlled by said controller and wherein said controller is coupled to a server data bus and operates as a slave to another controller.

2. The device according to claim 1, wherein said another controller is a master controller of said server.

3. The device according to claim 2, wherein said broadband gateway card has the functions of a broadband residential gateway including communication capabilities for media type such as data, text, audio, video and multimedia audio and video.

4. A device providing PBX services in an integrated broadband communication system, including:

a server including a broadband gateway card coupled to a data bus of said server for providing customer premises PBX services, said broadband gateway card including;

at least one telephone interface coupled to a data bus;

a controller coupled to said data bus for controlling information traffic between said at least one telephone interface and said broadband communication system;

a memory coupled to said data bus; and

a transceiver coupled to said data bus for multiplexing and demultiplexing said information traffic between said broadband communication system and said broadband gateway card, wherein said transceiver is coupled to the server data bus and controlled by another controller coupled to said server data bus and wherein said another controller is a controller of said server.

5. A device for providing customer premises communication services for an integrated broadband communication system, including:

a personal computer including a broadband gateway card coupled to a data bus of said personal computer for providing customer premises broadband communication services, said broadband gateway card including;

at least one telephone interface coupled to a data bus;

a controller coupled to said data bus for controlling information traffic between said at least one telephone interface and said broadband communication system;

a memory coupled to said data bus;

a transceiver coupled to said data bus for multiplexing and demultiplexing said information traffic between said broadband communication system and said broadband gateway card, wherein said transceiver is controlled by said controller which is a slave to another controller and

a TV port coupled to said data bus.

6. The device according to claim 5, wherein said broadband gateway card further includes a peripheral port coupled to said data bus.

7. The device according to claim 5, wherein said broadband gateway card further includes a data port coupled to said data bus.

8. A method for providing calling services on a broadband gateway PBX, comprising the steps of:

determining whether a request to access to said broadband gateway PBX calling features has been received and if so, implementing said broadband gateway PBX calling features; and

determining if the called number has said broadband gateway PBX calling features engaged and if so, routing the incoming call according to the engaged broadband gateway PBX calling features; and

determining whether the caller has authorization to access the engaged broadband gateway PBS calling features.

9. The method according to claim 8, further comprising the step of rejecting the caller if the caller does not have authorization to access said broadband gateway PBX calling features.

10. The method according to claim 9, further comprising the steps of:

determining if an incoming call to a called number has a POTS address, and if so, converting the POTS address to an Internet Protocol address; and

allowing the rejected caller to enter another called number after attempting to gain authorization to said broadband gateway PBX calling features.

11. The method according to claim 10, wherein said broadband gateway PBX includes a broadband gateway card inserted in a server.

12. The method according to claim 8, further comprising the step of receiving at the PBX a calling feature code corresponding to at least one calling feature to be implemented by said broadband gateway PBX.

13. The method according to claim 12, further comprising the step of allowing the caller to implement additional calling features after implementing said broadband gateway PBX calling feature.

14. The method according to claim 13, wherein said broadband gateway PBX includes a broadband gateway card inserted in a server.