WhatWhy

Does anyone have this unit and are Using AA? When it first came out it was great. Now through several phones the problem has only gotten worse. If I request the unit to make a call it confirms who I want to call then it says it's calling then the radio comes back on. After several tries it may work. Anyone else have this problem? I'm currently using a Samsung S10+ If yours is working what phone are you using? Any tips??? Thanks for any advice!