Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Dingtone - Dingtone is a free call and texting application for making unlimited calls and text messages to any number at the moment registered in any part of the world by any cellular company.
TextMe - TextMe is a free calls and messaging application at both local and international levels.
textPlus - textPlus lets you send and receive text messages without the need for a data plan.
Freetone - Freetone is a free texting and calling application.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.