Mehul M Mehta

US Patent:

6819750, Nov 16, 2004

Filed:

Oct 26, 2000

Appl. No.:

09/697221

Inventors:

Mehul Mehta - Potomac MD
Slobodan Jovanovic - Bethesda MD
Aleksandar Purkovic - Potomac MD

Assignee:

Nortel Networks Limited

International Classification:

H04M 1100

US Classification:

37910017, 37910006, 37910001, 358434, 358468

Abstract:

A method and apparatus for establishing communication between a sending facsimile machine and a receiving facsimile machine first receives an answer tone message for a specified time. It then is determined if a given joint menu message has been received from the receiving facsimile machine at any time during the specified time. If it is determined that the given joint menu message has not been received from the receiving facsimile machine at any time during the specified time, then the above noted alias joint menu message is forwarded to the sending facsimile machine. The alias joint menu message is different from the given joint menu signal and thus, not a true joint menu message that can be used by the sending facsimile machine.

US Patent:

6888794, May 3, 2005

Filed:

Nov 13, 2000

Appl. No.:

09/709576

Inventors:

Slobodan Jovanovic - Bethesda MD, US
Mehul Mehta - Potomac MD, US
Zongyao Zhou - Gaithersburg MD, US

Assignee:

Nortel Networks Limited

International Classification:

H04L012/26

US Classification:

370230, 370282, 370352, 3703952

Abstract:

A method and apparatus for exchanging data rate information across a packet-based network, is presented herein. In accordance with an embodiment of the invention, a first and second communication device, configured to operate as data sources, sinks, or both, communicate with a first and second gateway mechanism, respectively. The first gateway mechanism receives data rate information from the first communication device to determine a first data signaling rate between the first communication device and the first gateway mechanism. Similarly, the second gateway mechanism receives data rate information from the second communication device to determine a second data signaling rate between the second communication device and the second gateway mechanism. The first gateway forwards data rate information containing the first data signaling rate to the second gateway mechanism and the second gateway mechanism forwards data rate information containing the second data signaling rate to the first gateway mechanism. The first communication device and the first gateway mechanism determine a maximum compatible source-to-sink data rate based on the first data signaling rate and the second data signaling rate received from the second gateway mechanism and the second communication device and the second gateway mechanism determine a maximum compatible source-to-sink data rate based on the second data signaling rate and the first data signaling rate received from the first gateway mechanism.

US Patent:

6735195, May 11, 2004

Filed:

May 22, 2000

Appl. No.:

09/575266

Inventors:

Mehul Mehta - Potomac MD

Assignee:

Nortel Networks Limited

International Classification:

H04L 1266

US Classification:

370352, 370477, 370492

Abstract:

An apparatus and method of forwarding data from a sending node to a receiving node across a network first encapsulates non-time dependent data in specifically sized frames, and then transmits such encapsulated frames after frames with time dependent data are transmitted. More particularly, the data includes a set of time dependent data types and a set of non-time dependent data types. Each of the time dependent data types are specified (e. g. , by their specific protocol specifications) to forward data in frames having a predefined frame size.