DZS Inc. (NASDAQ:DZSI) Q3 2022 Earnings Conference Call November 1, 2022 5:00 PM ET Company Participants Ted Moreau - Head of Investor Relations Charles Vogt - President & Chief Executive Officer Miguel Alonso - Chief Product Officer Misty Kawecki - Chief Financial Officer Conference Call Participants Tore Svanberg - Stifel Ryan Koontz - Needham & Company Paul Essi - William K. Woodruff & Company Tim Savageaux - Northland Capital Markets Dave Kang - B. Riley Christian Schwab - Craig Hallum Operator Good day ...

| --- | --- | --- | --- | --- | --- | --- | |-----------------------------|-------|---------------------------------------------|-------|-------|-------|-------| | | | | | | | | | | | | | | | | | | | | | | | | | | | Q3 2022 Earnings Presentation Nasdaq (DZSI) | | | | | | Period ended September 2022 | | | | | | | | November 1, 2022 | | | | | | | Safe Harbor Statement This presentation contains forward-looking statements that are subject to the safe harbors created under the Securities Act of 1933 and the Sec ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Title of each class Trading Symbol(s) Name of each exchange on which registered Common stock, $0.001 par value DZSI The Nasdaq Stock Market LLC FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to 000-327 ...

DZS, Inc. (OTC:DZSI) Q2 2022 Earnings Conference Call August 2, 2022 10:00 AM ET Company Participants Ted Moreau - VP, IR Charles Vogt - President, CEO & Director Misty Kawecki - CFO Conference Call Participants Paul Essi - William K. Woodruff Dave Kang - B. Riley Securities Tore Svanberg - Stifel Christian Schwab - Craig-Hallum Tim Savageaux - Northland Capital Markets Ryan Koontz - Needham & Company Operator Good day, and thank you for standing by. Welcome to the DZS Second Quarter 2022 Earnings Conferenc ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Title of each class Trading Symbol(s) Name of each exchange on which registered Common stock, $0.001 par value DZSI The Nasdaq Stock Market LLC FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to 000-32743 (C ...

DZS, Inc. (OTC:DZSI) Q1 2022 Earnings Conference Call May 3, 2022 10:00 AM ET Company Participants Ted Moreau - VP, IR Charles Vogt - President, CEO & Director Misty Kawecki - CFO Conference Call Participants Paul Essi - William K. Woodruff Jeremy Loiacono - Stifel Ryan Koontz - Needham & Company Dave Kang - B. Riley Securities Christian Schwab - Craig-Hallum Capital Group Timothy Savageaux - Northland Capital Markets Operator Good morning, and welcome to the DZS First Quarter 2022 Earnings Conference Call. ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to 000-32743 (Commission File Number) DZS INC. (Exact name of registrant as specified in its charter) 5700 Tennyson Parkway, Suite 400 Plano, Texas 75024 (Add ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 000-32743 DZS INC. (Exact name of registrant as specified in its charter) Delaware 22-3509099 (State or other jurisdiction of incorporat ...

DZS Inc. (OTC:DZSI) Q4 2021 Earnings Conference Call February 11, 2022 10:00 AM ET Company Participants Ted Moreau - VP of IR Charlie Vogt - President and CEO Misty Kawecki - CFO Conference Call Participants Ryan Koontz - Needham & Company Christian Schwab - Craig-Hallum Dave King - B. Riley FBR Tim Savageaux - Northland Capital Operator Good day and thank you for standing by. Welcome to the DZS Fourth Quarter 2021 Earnings Conference Call. At this time all participants are in listen-only mode. After the sp ...

DZS Inc. (OTC:DZSI) Q3 2021 Earnings Conference Call November 2, 2021 10:00 AM ET Company Participants Ted Moreau - Vice President of Investor Relations Charlie Vogt - President and Chief Executive Officer Misty Kawecki - Chief Financial Officer Conference Call Participants Ryan Koontz - Needham & Company Dave King - B. Riley Tim Savageaux - Northland Capital Christian Schwab - Craig-Hallum Operator Ladies and gentlemen, thank you for standing by. And welcome to the DZS Quarter Three 2021 Earnings Conferenc ...