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`1/2
`
`AT&T Exhibit 1034
`AT&T v. VoIP, IPR 2017-01384
`Page 1
`
`
`
`5/5/2017
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`Internet Engineering Task Force (IETF)
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`2/2
`
`AT&T Exhibit 1034
`AT&T v. VoIP, IPR 2017-01384
`Page 2
`
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