Have just had the strangest thing happen. One of my three BT8610 handsets was ringing continuously when no call was incoming. I had to press the hang-up and answer/call keys to stop it - once it stopped, one of my other handsets took over ringing.
I checked last number called and no incoming call had been made.
Hi @NicC welcome to the forum and thanks for posting. Sorry you experienced this problem with your phone. Did you get this resolved? If not try the BT8610 help page and the contact details for the product helpdesk are listed if you still need help with this.