How-Tos 30-Button Telephone (ITE30): Phone Settings (Volume and Tone) This article discusses the phone settings for volume and tone on the 30-button (ITE30) telephone. View full article (UMN login required): 30-Button Telephone (ITE30): Phone Settings (Volume and Tone) Last modified Changed July 15, 2025 TDX ID TDX ID 3774 Was this page helpful? Yes No How could this page be better? If you have a technology question, contact Technology Help. If you have feedback about this webpage, please share it below. Leave this field blank
