MY ATT HS8201 WENT DEAD -- THE BATTERY IS GOOD?

MY ATT CORDLESS PHONE WENT DEAD, IT BEEPED A COUPLE OF TIMES BUT IS DEAD. THE CHARGING LIGHT STAYS ON UNTIL I PICK UP THE HANDSET. I PRESS THE BLUE PHONE BUTTON AND DON'T EVEN A DIAL TONE, I GET NO SOUNDS AT ALL OUT OF THE RECEIVER. I KNOW IT HAS AN INTERNAL FUSE COULD THAT BE THE PROBLEM?