`________________
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`________________
`
`AT&T SERVICES, INC.,
`
`Petitioner,
`
`v.
`
`CONVERGENT MEDIA SOLUTIONS, LLC,
`
`Patent Owner.
`
`________________
`
`INTER PARTES REVIEW OF U.S. PATENT NO. 8,850,507 B2
`Case IPR No.: IPR2017-01235
`________________
`
`
`
`PATENT OWNER’S POWER OF ATTORNEY
`
`
`
`
`
`
`
`
`
`
`Case IPR2017-0123 5
`U.S. Patent No. 8,850,507 B2
`
`POWER OF ATTORNEY
`
`Pursuant to 37 C.F.R § 42.10, Patent Owner Convergent Media Solutions,
`LLC ("CMS"), hereby appoints the following attorneys and/or agents to transact
`all business in the United States Patent & Trademark Office associated with this
`
`Inter Partes review.
`Lead Counsel:
`
`Back-up Counsel:
`
`'Back-up Counsel:
`
`Matthew C. Juren
`Registration No. 68,233
`NELSON BUMGARDNER, P.C.
`3131 W� 7th Street, Suite 300
`Fort Worth, Texas 76107
`Telephone: (817) 806-3816
`Email: matthew@nelbum.com
`Barry J. Bumgardner
`Registration No. 38,397
`NELSON BUMGARDNER, P.C.
`31 31 W. 7th Street, Suite 300
`Fort Worth, Texas 76107
`:Telephone: (817) 3 77-3494
`Email: barry@nelbum.com
`All practitioners associated with
`NELSON BUMGARDNER, P.C.,
`Customer Number 000128078
`
`Dated: April 25, 2017
`
`By:
`
`avid White, President
`Convergent Media Solutions, LLC
`
`- 2 -
`
`