mr. carpenter, what is ctia? >> guest: ctia is, actually, at this point an orphan acronym. ctia is the trade association that represents the wireless industry. once upon a time, it was the cellular telecommunications industry association, then it became the cellular telecommunications and internet association. and then as the industry changed, we said instead of trying to change the name, we'd just become the wireless association. we're proud to represent the wireless ecosystem in its entirety from the carriers, manufacturers, hand seth vendors, the integrators and the app developers. >> host: so what are some of the companies you represent directly? >> guest: everybody from at&t, verizon, t-mobile on the large carrier end down to bluegrass cellular and independent companies like that. network equipment companies like erickson, alcatel-lucent, handset vendors like apple and samsung and companies that stand behind them and provide things like insurance services, network integration services and so on. >> host: well, given that wide swath of the telecommunications world that