The bt 4500 quad big button cordless phone simple high quality and freedom from nuisance calls featuring big buttons a clear display with extra large font and an amplify button to boost the volume the bt 4500 is the perfect choice for those with sight hearing or dexterity problems looking for a phone that is tailored to suit their needs whilst affording reliable quality it further benefits from btrsquos nuisance call blocking function which means users can put an en