"IF YOU LIKE SKYPE, YOU WILL LOVE THE VOIPBUSTER" is their tagline.
VoipBuster is a "free" voip service provider that offers free in-network calls, a la Skype, their biggest competitor. Like Skype, they offer unlimited free in-network calls but they've focused only on audio calls instead of video calls. They advertise various free calling days and decently low international rates.
How does VoipBuster compare to Skype? Let us know. Write a review!