Is it possible that some networks will not or can not call a magicjack number? I have had a few reports of people who said they couldn't get through, but I never took notice since the magicjack seems to work fine most of the time. The last one I took an interest in because it was a very important call, and have been working with your tech support folks to try to make it work so that this number can call me but so far no dice. He is calling from a system where he has to dial 9- to get an outside number. So now I wonder how many calls I have missed from people who did not have an alternative number for me.