Reach Out & Touch Yourself

So obvious, it's brilliant. How do you solve the problem of presence in the context of phonesex (more specifically, the lack of physical presence of your partner)? Obviously, by "harnessing the vibrations produced by your phone and concentrating them directly on the area they are appreciated most...." Not only that, "it's great for solo fun too! Just set your alarm to ring every minute!"

(Hat tip to Stefano Mirti.)