After starting amid the smoldering ruins of AT&T and T-Mobile USA's failed merger, 2012 ended as a big year for mobile carrier deals in the U.S., and possibly a final changing of the guard for a long time.
Hosting facilities for networks must become more adept at filtering software bots that foster denial-of-service attacks, because they are as likely to abet such actions as infected home PCs, AT&T's chief security officer says.
The four largest mobile carriers in the U.S. -- AT&T, Verizon, Sprint Nextel and T-Mobile -- have agreed to accelerate the availability of emergency texting, or text-to-911.
Showing that it's serious about quickly phasing out its venerable iDEN network and traditional push-to-talk service, Sprint Nextel now plans to charge all subscribers on that system an extra $10 per month beginning Jan. 1.
In the annual rankings of major U.S. cellphone carriers, Verizon Wireless retained the top spot while AT&T once again brought up the rear. But AT&T can at least note that its 4G LTE network was the top-ranked among carriers.
The U.S. Federal Communications Commission may seek to make carriers reveal how well their networks withstood major natural disasters so that consumers can compare rival providers.