wi-fi calling

The Department of Justice doesn't want to see AT&T end up with T-Mobile, but would it stop Sprint Nextel from making such an acquisition? What about MetroPCS or Leap Wireless?

Earlier this week, the DOJ stunned many people in the wireless industry when it filed suit against AT&T to stop its $39 billion acquisition of T-Mobile USA. The agency said that allowing AT&T to buy T-Mobile would likely result in higher prices and a loss of innovation in the wireless market.

The news has sparked speculation about what will happen to T-Mobile if … Read more

All good things must come to an end. At least that's likely the case for T-Mobile USA customers who like using the carrier's Wi-Fi calling feature on certain smartphones.

In this week's column, I discuss whether I think AT&T will keep the Unlicensed Mobile Access Wi-Fi calling feature that T-Mobile offers on some of its smartphones. I also discuss Samsung's problem with long delays for Android OS updates. And I explain to a Boost Mobile customer that he has two years to pick out a new phone before Sprint turns out the lights on … Read more

One iPhone, two phone numbers. That's the idea behind Line2, a new telephony app that effectively adds a second line to your handset.

Despite Apple's curious claims that iPhones aren't for business, Line2 should come as good news indeed to business users. It provides a new local number, a ported existing number, or an 800 number.

Whichever option you choose, the number comes with voicemail, call history, and an independent contacts directory. (The Line2 app provides one-tap switching between your iPhone and Toktumi phone books, a nice touch.)

Using Line2 requires signing up for Toktumi's "… Read more

A new version of popular voice over IP app Truphone just hit the App Store, offering better call quality, single-screen instant messaging, and various interface improvements.

In case you're unfamiliar with it, Truphone leverages Wi-Fi networks to provide free voice calls--worldwide--to other Truphone users and to your Google Talk and Skype contacts. In other words, if you're in range of a hotspot, you can gab all you want without spending a penny.

Truphone also lets you call landlines and cell phones at low rates--great if you routinely burn through your allotted AT&T minutes and don't … Read more

Rumor has it that there will be code details about OS X 10.6 at Apple's Worldwide Developers Conference next week. Bold prediction, considering it's a developer's conference. Geniuses. Now, what cat to name it after? Also, Bill Gates gives his last speech on the road to his nearly-full-time-job-retirement; Oklahoma City has a sweet Wi-Fi mesh network that you can't use (unless the password is "password"); and you can now get your Outlook e-mail on an LG enV(2).

Mac OS 10.6 debuting next week? … Read more