Selling this one because I upgraded to an OBi200. The OBi110 is no longer supported by Obihai, but if you use SIP services like VoIP.ms or freephoneline.ca it works fine... can also call in/out on your regular land-line. Running latest firmware and just factory reset. Call quality is excellent. Some of the OBi110 Calling Features: Call Forward, Caller ID - Name - Number, Anonymous Caller Blocking, Message Waiting Indication - Visual and Tone Based... you can call any other OBis for free.