ADTRAN (NasdaqGS:ADTN) Q1 2026 Earnings call May 05, 2026 08:30 AM ET Speaker5Ladies and gentlemen, thank you for standing by, and welcome to the ADTRAN Holdings, Inc. First Quarter 2026 Earnings Release Conference Call. All lines have been placed on mute to prevent any background noise. After the speaker's remarks, there will be a question and answer session. If you'd like to ask a question during this time, simply press star followed by the number 1 on your telephone keypad. If you'd like to withdraw your ...