US Patent 8340644 Voicemail forwarding functionality for communications networks

Patent 8340644 was granted and assigned to AT&T Mobility on December, 2012 by the United States Patent and Trademark Office.

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Patent Inventor Names

William Joseph Sigmund0

Brian Keith Rainer0

Michael Robert Zubas0

Date of Patent

December 25, 2012

Patent Application Number

121610330

Date Filed

April 25, 2008

Patent Primary Examiner

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