US 9,253,332 K1 (3,879th)
	Voice conference call using PSTN and internet networks
Thomas Dye; and Thomas Dundon
Assigned to MEETRIX IP, LLC
Trial No. IPR2023-00377, Dec. 16, 2022
Inter Partes Review Certificate for Patent 9,253,332, issued Feb. 2, 2016, Appl. No. 13/674,227, Nov. 12, 2012
Inter Partes Review Certificate issued Feb. 13, 2025