Dead pranks, I don't get it. You answer, they hang up. You call back, the number is "switched off or unavailable". Seemingly a call centre of some sort, having so many different but similar numbers. An explanation would be great!

This number along with several others that only differ in the last two digits - 85, 05, 82, 71, 98 - ring my mobile every couple of hours, and hang up after 2 to 3 rings. Dialling back gets no joy.

Got a call from this phone number.