"The ever-competitive mobile VoIP market is additionally heating up with Rebtel unveiling a new version (1.1) of its Android application, which brings low-cost international calls to all the users with smartphones running Googles mobile OS," writes Dusan on the IntoMobile blog.
"However, unlike similar solutions (aka Skype), Rebtel doesnt require a working data (WiFi) connection. The service works in a 'callback fashion' and as a background app (process), making VoIP calls perform in the same manner as regular phone calls. As soon as you start dialing some number, Rebtels app jumps from the background suggesting it does the calling to save you some cash," Dusan writes.
Click the link below to read the full postingand see a video demo:
APB Running Advertisements Through Voice Chat