The MySOS unit is configured and set with the best 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.
For further assistance please contact Customer Support on 0800 990 3562 (Mon - Fri 8am - 6.30pm).
To visit our MySOS help pages, please click here - https://peoplesafe.zendesk.com/hc/en-gb/sections/360003981658-MySOS-Training-Content-