OBI Polycom OBIHAI 200 - $50

Polycom OBi200 VoIP Phone Adapter With an OBi device and your existing broadband Internet connection, from the comfort of your home phone, you have the power to make and receive phone calls using a multitude of VoIP services for free or at a fraction of the cost a traditional telco would charge.
Local, long distance and even international calling are all possible.
The Polycom OBi200 and OBi202 support up to four (4) VoIP services like Google Voice, Anveo, PhonePower, VoIPms and a multitude of 'Bring Your Own Device' Internet phone services.
Get the lowest cost local and international calls with service providers of your choice