Can anyone please tell me why my phone base has started beeping very loudly twice every minute or so?
Many thanks!
Welcome to this user forum for BT Retail phone and broadband customers.
Message on answering machine?
If not, then try turning off the power to the base unit for about a minute.
Manual is here https://www.bt.com/content/dam/bt/help/legacy-ug/phones/BT6510%20Quick%20User%20Guide%20Version%201....