Get flash to fully experience Pearltrees
Android phones with Google Voice can make and receive calls at an extremely disounted rate, but you still need a voice plan to make these calls. Using Google Voice, Android, and Sipgate, you can get around that limitation and make calls for free. Using Google Voice you can call any number for free but you are not able to receive calls directly to your Google Voice number on your Android phone without a voice plan with your carrier. Using sipgate you can receive any call for free but cannot place calls without adding money to your account.