Turning on sound You can listen to a single channel at a time in channel test mode. Sound is disabled when you are in full T1 test mode. To Turn On the Sound Step Notes 1 [Mode] 2 [Backhaul] 3 [T1 Analyzer] 4 [Get Started/Test Mode] 5 Select a measurement. 6 Select Channel mode. 7 [Display/Sound] 8 [Sound] 10 [On] or [Off] Each time you press this softkey, the selected option changes. 11 Set the volume. [Volume] Enter the volume level from 1 - 10. [Enter]