A VoIP telephone, also known as a SIP phone or a Softphone, allows the users to make phone calls to any softphone, mobile or land line by using Voice over IP (VoIP). A VoIP phone converts the standard telephone audio into digital format so the voice is carried through the internet instead of the traditional PSTN (Public Switched Telephone Network) system.
A VoIP telephone can be a simple software-based softphone or a hardware device that looks like a common telephone.
VoIP Telephone Features
Some of the common features of a VoIP telephone are: caller ID, call park, call transfer, call hold, phonebook access and multiple account configuration. Some VoIP phones also allow the transmission of video along with audio during calls.