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Simon Arthur Oakley
GAITHERSBURG, MD US
1. 20090168769 METHODS AND APPARATUS FOR DUAL-TONE MULTI-FREQUENCY SIGNAL ANALYSIS WITHIN A MEDIA OVER INTERNET PROTOCOL NETWORK 07-02-20092. 20090003315 METHODS AND APPARATUS FOR DUAL-TONE MULTI-FREQUENCY SIGNAL CONVERSION WITHIN A MEDIA OVER INTERNET PROTOCOL NETWORK 01-01-2009