Client claims T26p is autoanswering

[3CTechnology]

Hi There

I am also experiencing this auto answering with 2 t28p's

Firmware Version 2.70.0.103
Hardware Version 1.0.0.39

Another issue i have is random beeping during and after call compleation.
Receptionist answers call and the beeping starts simultaneously
call gets transferred or ended handset put down and the beeping
continues on the speakerphone if the handset is lifted again the beeping is then heard on the handset speaker and will then stop on its own after a short while.This beeping is not heard by the calling party and is not present in the call recording.

Thanks