The phone is not currently in use and it is a standard wired telephone that i have plugged in, the bleeps come from the handset ear piece, and there is no dial tone.
Thank you for that clarification. It is almost as if we are playing a game of twenty questions but are you paying for a telephony service,
Steve? If not, then you need to sign up and pay your money.
As for getting the proposed extension to work,
HP has read my mind and so I shall make a bow in his direction, letting him guide you through the steps you should take to achieve that aim. I will, of course, continue to follow this thread with interest.