Matthew S Stafford

US Patent:

7136378, Nov 14, 2006

Filed:

Mar 31, 2004

Appl. No.:

10/813052

Inventors:

Haifeng Bi - Austin TX, US
Matthew Wayne Stafford - Austin TX, US
Tina M. Sigarto - Raleigh NC, US

Assignee:

SBC Technology Resources, Inc. - Austin TX

International Classification:

H04L 12/66
H04L 12/50
H04L 12/56

US Classification:

370356, 3703953

Abstract:

A method for providing secure communications through a communications network comprising ATM channels and TDM channels. The communications network includes at least one closed user group of network elements configured to communicate with only other network elements in the closed user group. The method receives a connection setup request at an ingress ATM switch, via a UNI attached to the ATM switch, in response to a call initiated through a TDM channel. The UNI interfaces a first network element of the closed user group with the ATM switch. The method further verifies that an ATM End System Address (AESA) contained in calling party information of the connection setup request is consistent with the attached UNI. Additionally, the method establishes a connection with at least a second network element of the closed user group through an egress ATM switch in the communications network when the AESA is consistent with the attached UNI.

US Patent:

7206611, Apr 17, 2007

Filed:

Apr 13, 2005

Appl. No.:

11/104608

Inventors:

Mark Wuthnow - Austin TX, US
William Rosenberg - Austin TX, US
Matthew Stafford - Austin TX, US
Richard M. K. Tam - Austin TX, US

Assignee:

Cingular Wireless II, LLC - Atlanta GA

International Classification:

H04B 1/38

US Classification:

455566, 455418, 455445, 37922114, 37922113, 370351, 370359

Abstract:

A method used in wireless communications for displaying an icon on a wireless communications device indicating that a calling party is a subscriber of a same wireless communications service provider of a called party. A terminating mobile station switching center (MSC) flags a routing number port associated with a routing number and returns the routing number to an originating MSC when it determines that a request for the routing number is sent from a home locator register (HLR) of the called party's wireless communications service provider and the calling party is also a subscriber of the called party's wireless communications service provider. When receiving an incoming call, the terminating MSC inspects whether the incoming call is to be sent through a flagged routing number port. If so, the terminating MSC generates a SETUP message with an instructions to display the icon. In responsive to the SETUP message, the wireless communications device of the called party displays the icon accordingly, indicating that the calling party is a subscriber of the same wireless communications service provider as the called party.

US Patent:

7227837, Jun 5, 2007

Filed:

Mar 23, 2000

Appl. No.:

09/534308

Inventors:

Haifeng Bi - Austin TX, US
Randy Beamon - Cedar Park TX, US
Weijing Chen - Austin TX, US
Janice Elaine Doerner - Dripping Springs TX, US
Mehran Esfandiari - El Cerrito CA, US
Gary Jonathan Gibbons - San Antonio TX, US
Paul August Kaschube - Austin TX, US
Bruce Allen Nance - San Antonio TX, US
John Pinch - Richardson TX, US
Tina Sigarto - Raleigh NC, US
Barbara Engel Smith - San Antonio TX, US
Matthew Wayne Stafford - Austin TX, US
George Anthony Young - Austin TX, US

Assignee:

AT&T Labs, Inc. - Austin TX

International Classification:

G01R 31/08
G08C 15/00
H04L 1/00
H04L 12/66

US Classification:

370217, 370356

Abstract:

A system and method for reducing and surviving failures in a voice trunking over ATM (VTOA) environment includes an ATM network having a plurality of interconnected ATM switches. The VTOA system also includes a CS-IWF complex having a plurality of interconnected CS-IWF units, each unit having a plurality of processors. An end office building may also be provided for interaction with the VTOA system. The end office building includes multiple T-IWFs, and a switch that distributes calls among the T-IWFs in a load sharing manner. Each T-IWF has a plurality of processors and is part of the VTOA system. A switch management system is also provided in the VTOA system. In order to reduce and survive failures, the switch management system includes a plurality of switch management system units. At least one of the switch management system units is a backup unit for at least one primary switch management system unit. Each switch management system unit provides application redundancy within itself.

US Patent:

7711351, May 4, 2010

Filed:

Aug 17, 2005

Appl. No.:

11/205459

Inventors:

Matthew Stafford - Austin TX, US
Nhan Thanh Tran - Lawrenceville GA, US

Assignee:

Cingular Wireless II LLC - Atlanta GA

International Classification:

H04M 11/00

US Classification:

455406, 455403, 455405, 4554351

Abstract:

Advice of charge information is provided utilizing the session initiation protocol (SIP) in an Internet protocol multimedia subsystem without utilizing an application server. The advice of charge message is provided to a user via the serving call/session control function and the home subscription server. When a request for a service is received by the serving call/session control function, the state of a binary, Boolean flag associated with the originator of the request is analyzed. Depending upon the state of the flag, either the request is routed to its intended destination, or an advice of charge message is routed to originating user, advising the user of the charge for the requested service. If the user accepts the charge, the serving call/session control function transmits the request for routing to the intended destination, and the flag is toggled. If the user declines the charge, the call is ended.

US Patent:

7796578, Sep 14, 2010

Filed:

Oct 4, 2005

Appl. No.:

11/243217

Inventors:

Matthew Wayne Stafford - Austin TX, US

Assignee:

Cingular Wireless II, LLC - Atlanta GA

International Classification:

H04L 12/28

US Classification:

370351, 37922001, 379 8817, 709203, 370392

Abstract:

Queries for IP addresses associated with a telephone number are conducted in accordance with query flags contained with an ENUM record. A query flag indicates the type of query to be initiated against the DNS databases. The query flag provides a means for interpreting the domain name portion of the URI contained in the ENUM record. Query flags provide an explicit indication as to the type of query to be performed against the DNS and provide an explicit indication as to how the domain name portion of a URI in an ENUM record should be interpreted. Query flags also provide guidance pertaining to subsequent actions to be performed. The use of query flags eliminates ambiguities associated with making assumptions about the domain name contained in an ENUM record. Thus, the use of query flags can reduce latency, reduce the load on transmission links, and reduce processing load on network elements.

US Patent:

7796592, Sep 14, 2010

Filed:

Jul 2, 2007

Appl. No.:

11/772460

Inventors:

Matthew Stafford - Austin TX, US
Kennie Y. Kwong - Atlanta GA, US
Mark S. Wuthnow - Austin TX, US
William Rosenberg - Austin TX, US

Assignee:

AT&T Mobility II LLC - Atlanta GA

International Classification:

H04L 12/50

US Classification:

370389, 370477

Abstract:

Methods and apparatus including a virtual machine and a compression network platform are provided especially for improving the application of compression algorithms and unique identifiers for bytecode and bytecode packages including associated static dictionaries utilized to advantage in wireless networks. In particular, a given virtual machine need only identify to a receiving virtual machine the unique package identifier for one or more of an algorithm, a static dictionary or a hash for decompressing a received data signal. The receiving virtual machine may advertise what it has locally available to it so that no uploading is necessary. The actuation of bytecode by identifier may be requested at a given destination within the parameters set by RFC 3320. Universal decompressor virtual machines may receive uploaded compression algorithms, bytecode identifiers, package identifiers or static dictionary identifiers and the like from proxy call session control functions of a wireless network, the compressing machine or a compression network platform resource which in one embodiment may comprise an IANA database. The methods and apparatus may find particular application in improving the efficiency of presence/group list management.

US Patent:

7843932, Nov 30, 2010

Filed:

Sep 14, 2006

Appl. No.:

11/531916

Inventors:

Haifeng Bi - Austin TX, US
Matthew Wayne Stafford - Austin TX, US
Tina M Sigarto - Raleigh NC, US

Assignee:

AT&T Labs, Inc. - Austin TX

International Classification:

H04L 12/28
H04L 12/56

US Classification:

3703951, 3702381

Abstract:

Narrowband signaling from a transfer node for a call originating at an end office is received at a centralized control and signaling interworking function device in an asynchronous transfer mode switching network. The received narrowband signaling is converted to broadband signaling. The broadband signaling is provided to a plurality of trunk interworking function devices via the asynchronous transfer mode switching network, to establish a connection across the asynchronous transfer mode switching network, when the centralized control and signaling interworking function device and the plurality of trunk interworking function devices are determined to be members of a closed user group.

US Patent:

8139739, Mar 20, 2012

Filed:

May 6, 2005

Appl. No.:

11/124520

Inventors:

Mark Wuthnow - Austin TX, US
Danh Lai - Fremont CA, US
Matthew Stafford - Austin TX, US
Richard Tam - Austin TX, US

Assignee:

AT&T Mobility II LLC - Atlanta GA

International Classification:

H04M 3/42

US Classification:

37920101, 379 8813

Abstract:

An enhanced alerting system delivers caller identification information to a user of a mobile communications device with the called device announcing in an audio format the name associated with a calling device. The enhanced alerting system may be implemented by an Internet Protocol (IP) based system, e. g. , IP Multimedia Subsystem (IMS). In at least one embodiment of the invention, an application server streams the announcement to the called communications device. In at least one embodiment of the invention, the service is network controlled. In at least one embodiment of the invention, the service is user equipment controlled. In at least one embodiment of the invention, a calling communications device streams the announcement to the called communications device in a request for a call session with the called communications device.