If I have time, i love to have fun with unsolicited calls. I listen to what they have to say, then tell them how pleased I am that they phoned (they think they have their day made at this point). I then tell them that I live on my own and am very lonely and is is wonderful to have the chance to chat to someone. I then ramble on about how my dog has just died, my children have dis-owned me, no one cares etc etc (I'm sure you get the picture). I don't let them get a word in edgewise, 10 minutes is my record to date before they give up, but if possible I always politely thank them for calling and ask them to call again soon (odd they never do ??? )