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Walter Cooper Chastain

AT&T

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Publication

Featured researches published by Walter Cooper Chastain.

Archive | 2013

System and method of providing IMS services to users on terminating non IMS devices

Steven A. Siegel; Siroos K. Afshar; Walter Cooper Chastain; Robert V. Epley; Karen M. McCourt; Arnold Chester McQuaide; Leopold Strahs; Maria Adamczyk

Archive | 2015

Apparatus and method for managing use of secure tokens

Walter Cooper Chastain; Stephen Emille Chin; Samuel King; Michael Suozzo; Nicholas Vondrak; Ismaila Wane

Archive | 2014

Systems for provisioning universal integrated circuit cards

Walter Cooper Chastain; Clifton Ashman Campbell; Stephen Emille Chin; David Harber; Brian Keith Rainer; David K. Smith; Shih-Ming Wang

Archive | 2008

System and method of providing IMS services to users on originating non IMS devices and other devices that do not have a previous relationship with the user

Steven A. Siegel; Siroos K. Afshar; Walter Cooper Chastain; Robert V. Epley; Karen M. McCourt; Arnold Chester McQuaide; Leopold Strahs

Archive | 2012

METHODS FOR PROVISIONING UNIVERSAL INTEGRATED CIRCUIT CARDS

Walter Cooper Chastain; Clifton Ashman Campbell; Stephen Emille Chin; David Harber; Brian Keith Rainer; David K. Smith; Shih-Ming Wang

Archive | 2016

Apparatus and method for secure delivery of data from a communication device

Walter Cooper Chastain; Stephen Emille Chin

Archive | 2015

SYSTEM AND METHODS FOR UICC-BASED SECURE COMMUNICATION

Walter Cooper Chastain; Stephen Emille Chin

Archive | 2015

Control domain change based on network registration condition

Min Lu; Walter Cooper Chastain; Martin Dolly; Judith Espejo; Mario Jardon; Russell P. Sharples; Guang Wang

Archive | 2014

Apparatus and method for secure delivery of data utilizing encryption key management

Walter Cooper Chastain; Stephen Emille Chin

Archive | 2017

Deep Packet Inspection Virtual Function

Walter Cooper Chastain

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Collaboration

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Stephen Emille Chin

AT

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Clifton Ashman Campbell

AT

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Frank Cariello

AT

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Paul Edward Smith

AT

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Reuben Klein

AT

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Arnold Chester McQuaide

AT

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Brian Keith Rainer

AT

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David Harber

AT

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David K. Smith

AT

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Karen M. McCourt

AT

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