dominicb Many Thanks! This is brilliant and a Huge Help!

It was exactly what I was looking for... but I just need a few modifications. Is it possible have the code running 24/7 and keep counting up even with excel closed and the computer turned off? (i.e. Link it to the computers internal clock and update and run automatically where it left off when you open excel again).

Also whats the code for unlimited (for unlimited # of calls)? and is it possible to make a "reset to zero" button that is linked to the counter?