A. B is just rude and could alarm someone elderly or hard of hearing. However, it does annoy me when you ring a number and get someone's answering machine, realise it's the wrong number and put it down - and they phone you back having rung 1471 to find out who you are! Surely they don't expect you to leave an ansafone message for them! This has happened to me a couple of times and I think it's totally bizarre!