T E,
I think you will find that your boss is right about mobile phones in USA. They do not all have mobiles! They mostly have pagers. There is a very different culture in mobile comms between the USA and Europe/Asia, the back ground to which I shall not trouble you with, unless you request it.
Allow me just to say that I have been in telecommunications for 22 years and have been involved with mobile comms since 1983.