Develop a software as a platform to an App for VOIP free calling and texting

Develop a software as a platform to an App for VOIP free calling and texting like Viber and others. now, we all notice that when calling the quality is not that good but texting is ok. I need a way to make calling a good experience! fast and clear. I was told that if it is a torrent based then very large packets and files can be transferred very quickly and in return the calls are very good and much better than Viber. I do have the domain already and have the name [login to view URL] I would need a nice website and a creative logo [login to view URL] outside the box,be creative and dont be too conservative.