The MicroSOS unit is configured and set with the optimum setting for the loudspeaker. Distortion may occur if there is a weak network signal when the call is made so quality may alter during calls. If the speaker is too quiet contact customer support on 0800 990 3562.
To view our MicroSOS help page, please click here - https://peoplesafe.zendesk.com/hc/en-gb/sections/360003970657-MicroSOS-Training-Content-