Robert W Callaghan

US Patent:

7203298, Apr 10, 2007

Filed:

Mar 10, 2003

Appl. No.:

10/385226

Inventors:

Leroy Edwin Gilbert - Wellington FL, US
Robert W. Callaghan - Prescott AZ, US

Assignee:

Siemens Communications, Inc. - Boca Raton FL

International Classification:

H04M 3/42

US Classification:

37920901, 37920704, 37921001

Abstract:

A communications network with callback completion to public network stations. An enterprise private network (EPN) includes a communications server, e. g. , a private branch exchange (PBX) managing communications with communications devices located at EPN stations and is connected to a public communications network. A call completion (CC) server connected through a Parlay Gateway to the public communications network manages callback requests from connected communications devices to public communications network stations. Call completion to busy subscriber (CCBS) and call completion on no reply (CCNR) services are thus made available from the EPN to the public network or networks including a mixture of public and private telephones.

US Patent:

7496924, Feb 24, 2009

Filed:

Dec 19, 2000

Appl. No.:

09/742696

Inventors:

Robert Callaghan - Coral Springs FL, US
Markku Korpi - Starmberg, DE
Jeff Cripe - Lake Worth FL, US
Mark Grosberg - Boca Raton FL, US
Kristin Butcher - Boynton Bch. FL, US
Leroy Gilbert - Wellington FL, US
Wyatt Howe - Boca Raton FL, US
Kenton Cross - Boca Raton FL, US
Geert Fieremans - Ghent, BE

Assignee:

Siemens Communications, Inc. - Boca Raton FL

International Classification:

G06F 15/16
G06F 15/173
G06F 15/177

US Classification:

719313, 709203, 718105, 718107

Abstract:

A telecommunications system having a software dispatcher is provided for delivering messages between dispatcher clients, i. e. , software subsystems that may be in the same process, a different process, or on a different machine. The dispatcher manages a pool of threads to balance the workload. The dispatcher can process both synchronous and asynchronous messages by dispatching the message to all registered subsystems in order of their registered priority.

US Patent:

20040001518, Jan 1, 2004

Filed:

Jun 28, 2002

Appl. No.:

10/185079

Inventors:

Leroy Gilbert - Wellington FL, US
Robert Callaghan - Prescott AZ, US

International Classification:

H04J003/12
H04L012/66
H04J003/16

US Classification:

370/525000, 370/352000, 370/468000

Abstract:

A system and method is presented for providing a ringback tone at the initiating end of a call while substantially reducing bandwidth usage. The initiating end initiates a call through a network. The receiving end of the call responds by transmitting an alerting message containing information on the characterization of a ringback tone to the initiating end of the call. At the initiating end of the call, the proper ringback tone is determined based on this information, and a ringback tone is generated. When the call is picked up at the receiving end, a transmission to the initiating end alerts the initiating end to cease the ringback tone. Silence suppression may be used at the receiving end to prevent the transmission of an audio stream before the terminal (e.g., a phone) is picked at the receiving end.

US Patent:

20040179669, Sep 16, 2004

Filed:

Mar 10, 2003

Appl. No.:

10/385121

Inventors:

Leroy Gilbert - Wellington FL, US
Robert Callaghan - Prescott AZ, US

Assignee:

Siemens Information and Communication Networks, Inc.

International Classification:

H04M007/00

US Classification:

379/221150, 379/219000

Abstract:

A virtual private communications network (VPCN) and method of managing calls on the network. Stations on a private communications network are identified by an unique private network identification (ID) code or dial in direct (DID) number. Remote communications devices (e.g., cell phones, analog phones, etc.) are virtual client devices connected from a public communications network to the private communications network. One or more DID numbers are shared DID numbers, dedicated for the virtual client devices. Calls from the virtual client devices may be placed to network stations by dialing shorthand (e.g., 5 or fewer digits) numbers. Each call has a dedicated DID number temporarily assigned to it for placing the call as an in network call. Once the call reaches its final destination, the shared DID number is released for temporary assignment to other virtual client device calls.