T-Mobile has expanded its free Bobsled VoIP calling service, going from Facebook to include access via browser and new Android/iOS apps. Users can call both cell numbers and landlines at no cost in the U.S., Canada and Puerto Rico.

Though the apps are limited to Facebook contacts, mobile users can still use them to place Bobsled-to-Bobsled calls, reach both Android and iOS friends, or leave voice messages that are notified on the recipient’s Facebook wall. (You can even intentionally leave a voicemail pinned to someone’s wall, in place of calling them.) For non Facebook-limited calling, users may access the service via the browser.

Seems like a pretty neat service that capitalizes nicely on many Tmo subscribers’ primary reason for choosing the carrier to begin with — cost savings. But there’s another interesting angle here: Tmo has long been an Android supporter (in fact, it’s the very first Android carrier, going back to those old days of the HTC G1). So it’s a no-brainer for them to come out with an Android app here. But iOS? Well, consider it a nod to all those unofficial iPhone users on its network. (Despite the fact that it’s the only U.S. carrier not invited to the 4S party.)

For more, hit up the main Bobsled site, the Bobsled for Facebook link, the Android Market page or the iPhone’s App Store.

Full press release follows.

Bobsled by T-Mobile Extends Free Calling to the Web, Android and iOS

New Dial-Out Functionality Allows Bobsled Users to Place Free VoIP Calls to Mobile and Landline Numbers from Across the Web

BELLEVUE, Wash. — Oct. 11, 2011 — T-Mobile today announced enhanced and expanded functionality for its Bobsled™ by T-Mobile® service. The new Bobsled functionality provides users with an easy, seamless way to call Facebook friends from most desktop browsers, Android™-powered smartphones and tablets, and Apple® iOS devices, including iPhones®, iPads® and iPod Touch® products. In addition, Bobsled provides users with free calling to any mobile or landline phone number in the U.S, Canada or Puerto Rico from inside or outside the U.S. from their desktop browser.

“Earlier this year we brought voice to social networking with Bobsled for Facebook. Now we are expanding the capabilities of Bobsled, allowing users to easily communicate with friends from anywhere on the Web and even dial out for free to mobile and landline numbers,” said Brad Duea, senior vice president, T-Mobile USA. “Users can also now jump on Bobsled from Android phones and tablets as well as from Apple iPhones, iPads and iPod Touch. Bobsled allows users to be heard across borders, websites, carriers and platforms.”

As the way people communicate transcends networks and devices, Bobsled provides users with new ways to connect regardless of where they are online, the format of their message or what device they are using:

Bobsled on the Web

Bobsled is available for most Internet browsers. Once signed into Bobsled on their browser, users can call, message or voice message with their Facebook friends at any time while using their Mac or PC. Bobsled eliminates the need for dialing — you simply click on a friend’s name to start the conversation. There’s no need to remember screen names or to input numbers. Users simply click the phone icon to initiate a call with friends and family or message via Facebook Chat.

Free Calling to Mobile and Landline Numbers

Bobsled users can now call any mobile or landline number in the U.S., Canada or Puerto Rico for free. Users simply open Bobsled from their browser on a Mac or PC and dial a number using an open Internet connection from anywhere in the world. Also, users can add mobile or landline numbers to their existing Facebook friends.

Bobsled for Apple iOS and Android Devices

Bobsled is now available from the Apple App Store for iPhone, iPad and iPod Touch, and from the Android Market™ for Android smartphones and tablets. Bobsled allows users to call or voice message their Facebook friends from their mobile device for free.

Bobsled’s browser and mobile applications are powered by Vivox Inc. Together, T-Mobile and Vivox, with its compelling VoiceEverywhere technology, are ushering in a new era of voice communications — online, on the go, virtually wherever and however users want to converse.

“Vivox’s partnership with T-Mobile and the Bobsled product is a stellar example of evolving the way we communicate,” said Rob Seaver, founder and CEO, Vivox. “As evidenced by Bobsled, VoiceEverywhere creates massively scalable conversations across devices, platforms and experiences and makes digital communication more seamless and natural, regardless of the context or location.”

For more information on Bobsled by T-Mobile and to install Bobsled, please visit www.bobsled.com.

We may earn a commission for purchases using our links. Learn more.