System and method for communicating telecommunication information between customer premises equipment and network equipment

• US 6,512,762 B1
• Filed: 02/11/2000
• Issued: 01/28/2003
• Est. Priority Date: 02/11/2000
• Status: Expired due to Term

• Current Assignee: Genband US LLC (Ribbon Communications, Inc.)
• Original Assignee: General Bandwidth, Inc.
• Inventors: Renucci, Peter J., Carew, A. J. Paul
• Primary Examiner(s): HSU, ALPUS
• Application Number:
  US09/502,668
• Time in Patent Office: 1,082 Days
• Field of Search: 370/352, 370/353, 370/354, 370/357, 370/360, 370/389, 370/401, 370/465, 379/88.07, 379/88.17, 379/93.01, 379/93.05, 379/93.06, 379/93.07, 379/93.09, 379/93.14, 379/93.15, 709/238, 709/249, 709/250
• US Class Current: 370/352
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data
• CPC Class Codes: H04Q 11/04 for time-division multiplexing H04Q11/0001 takes precedence
• 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 2213/13039 Asymmetrical two-way transmission, e.g. ADSL, HDSL
• CPC Class Codes: H04Q 2213/13082 Power supply via phantom line
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13106 Microprocessor, CPU
• CPC Class Codes: H04Q 2213/13166 Fault prevention
• CPC Class Codes: H04Q 2213/13167 Redundant apparatus
• CPC Class Codes: H04Q 2213/13173 Busy signals
• CPC Class Codes: H04Q 2213/1318 Ringing
• CPC Class Codes: H04Q 2213/13196 Connection circuit/link/trunk/junction, bridge, router, gateway
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13214 Clock signals
• CPC Class Codes: H04Q 2213/13292 Time division multiplexing, TDM
• CPC Class Codes: H04Q 2213/13299 Bus
• CPC Class Codes: H04Q 2213/13353 Routing table, map memory

Abstract

An apparatus for communicating telecommunication information between customer premises equipment and network equipment includes a subscriber line interface, a processing module, and a bypass switch. The interface receives an analog telephone signal communicating telecommunication information from a subscriber line. The processing module receives the analog telephone signal and processes the analog telephone signal to generate data packets for communicating the telecommunication information over a local loop circuit in a first mode of operation. The bypass switch communicates the analog telephone signal from the interface to the processing module in the first mode of operation and communicates the analog telephone signal from the interface over the local loop circuit to the network equipment in a second mode of operation.

Claims

1. An apparatus for communicating telecommunication information between customer premises equipment and network equipment, comprising:

a subscriber line interface operable to receive an analog telephone signal communicating the telecommunication information from a subscriber line;

a processing module operable to receive the analog telephone signal and to process the analog telephone signal to generate data packets for communicating the telecommunication information over a local loop circuit to the network equipment in a first mode of operation, wherein the processing module is further operable to determine whether it can communicate with a gateway using the data packets, to select the first mode of operation in response to determining that it can communicate with the gateway using the data packets, and to select the second mode of operation in response to determining that it cannot communicate with the gateway using the data packets; and

a bypass switch operable to communicate the analog telephone signal from the interface to the processing module in the first mode of operation and to communicate the analog telephone signal from the interface over the local loop circuit to the network equipment in a second mode of operation.

2. The apparatus of claim 1, wherein the processing module determines that it can communicate with the gateway if the processing module can maintain a virtual circuit between itself and the gateway.

3. The apparatus of claim 1, wherein the processing module determines that it cannot communicate with the gateway if the processing module is disconnected from the local loop circuit or has an internal failure.

4. A method of communicating telecommunication information between customer premises equipment and network equipment, comprising:

receiving an analog telephone signal communicating telecommunication information from a subscriber line;

processing the analog telephone signal to generate data packets for communicating the telecommunication information over a local loop circuit to the network equipment in a first mode of operation;

communicating the analog telephone signal over the local loop circuit to the network equipment in a second mode of operation;

determining whether the customer premises equipment can communicate the data packets to a gateway;

selecting the first mode of operation in response to determining that the customer premises equipment can communicate the data packets to the gateway; and

selecting the second mode of operation in response to determining that the customer premises equipment cannot communicate the data packets to the gateway.

5. The method of claim 4, wherein determining whether the customer premises equipment can communicate the data packets to the gateway comprises determining whether the customer premises equipment can maintain a virtual circuit between itself and the gateway.

6. The method of claim 4, further comprising determining that the customer premises equipment cannot communicate the data packets to the gateway if the customer premises equipment is disconnected from the local loop circuit or has an internal failure.

7. A system for communicating telecommunication information between customer premises equipment and network equipment, comprising:

a processing module comprising;

a first port supporting communication of an analog telephone signal between a subscriber line and the processing module, the analog telephone signal communicating the telecommunication information; and

a second port supporting communication of data packets between the processing module and the network equipment using a local loop circuit, the data packets communicating the telecommunication information; and

a bypass switch operable to couple the subscriber line to the first port of the processing module in a first mode of operation and to couple the subscriber line to the local loop circuit in a second mode of operation, wherein the processing module is further operable to determine whether it can communicate with a gateway using the data packets, to select the first mode of operation in response to determining that it can communicate with the gateway using the data packets, and to select the second mode of operation in response to determining that it cannot communicate with the gateway using the data packets.

8. The system of claim 7, wherein the processing module determines that it can communicate with the gateway if the processing module can maintain a virtual circuit between the itself and the gateway.

9. The system of claim 7, wherein the processing module determines that it cannot communicate with the gateway if the processing module is disconnected from the local loop circuit or has an internal failure.