Vbuzzer, like Skype, is a  an instant messaging as well as VoIP software. But unlike Skype, it’s based on SIP (Session Initiation Protocol), which let you enjoy better call quality according to user reviews.

Vbuzzer is a strong competition to Skype, while they all allow you to make free PC-PC calls and offer a local regular number (phone plan needed), but the price of long distance call of Vbuzzer is only half that of Skype, which is very good. In the meantime, Vbuzzer offers free Voicemail which Skype will charge you for using voicemail.

As for the rates of Vbuzzer, they offer per as you go and monthly calling plan. According to their website, monthly calling plan lets you save more than 50% from pay as you go rate, but the details can only be seen after you download the software and sign up with them. Even so, Vbuzzer allows you to save serious money when compared to other VoIP service like Skype and Yahoo Messenger etc.

Vbuzzer is the most powerful VoIP service I have even seen. They not only allows you to make PC-Phone calls at low rates, but they also offers you internet fax (now free within US and Canada), mobile SMS, VPN and conferencing service, all in a single VoIP client, which is really amazing.

Vbuzzer runs at Windows, MAC, its mobile version is available for iPhone, Windows Mobile and Symbian mobile phones. See details here.

Vbuzzer has already received lots of good feedback from its customers due to its promotion, low rates, and quality services.