Who I have the same questioned this topic

Purchased  a T2000 Home Phone in February 2019.   Initially was excellent however after 5 to 6 weeks began dropping calls.  Online support suggested to reset by powering down and disconnecting the battery.  This corrects the issue but happens again after several weeks.  Continue to reset the T2000 when this occurs.  Has anyone experienced this issue?  Does anyone have suggestions for a permanent fix?  Thanks in advance.