IPR2017-01636, No. 1023-24 Exhibit - International Telecommunication Union, General Aspects of Digital Transmission Systems, Terminal Equipments, Pulse Code Modulation PCM of Voice Frequencies, ITU T
IPR2017-01636, No. 1023-24 Exhibit - International Telecommunication Union, General Aspects of Digital Transmission Systems, Terminal Equipments, Pulse Code Modulation PCM of Voice Frequencies, ITU T
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