Voip Phone With 100 To 240V Power Adapter, Supports Sip Protocol and Automatic Provision, Conference Station, Speakerphone, Audio Conferencing System, Voip Phone, Ippbx, Recording Device, Caller Id Phone With 110 To 240V AC Voltage and 50 To 60Hz Frequency, Measuring 300 X 63Mm, USB Personal Speakerphone, Connectible To Voip Soft Phones and Internet Telephones Such as Skype, Technology Industry, Power Adapters, Telephones ...