In order to implement this service, T-Mobile will deliver the ability to turn on a sort of Bobsled toolbar which comes in the guise of a Facebook app, where this tab will be displayed in your browser so that you can more or less view it all the time. It will also slide along web pages, letting you gain access to calling options in a jiffy.
Bobsled offers free calling to mobile and landline numbers in the U.S., Canada, and Puerto Rico, and is also available as a mobile app for the two most popular mobile platforms of today – Android and iOS, so that you are able to make free calls from your device. Anyone given it a go already?