Whenever I receive a call from a number I don't recognise, I use the website "who calls me" or "who called me". It's very useful for finding out where the calls come from. I get a call nearly every day from a 0191 number, apparently it's The Dogs Trust. Needless to say I never answer a call from a number I don't know. If it is important they will leave a message.
James Cleverly is running to be Mayor of London
