The phone 3CX VoIP Phone is a VoIP / SIP free (or soft phone) that lets you use your PC or laptop as a phone. Using the Internet as a means to transmit your voice for phone calls, rather than using traditional telephone services. By using a connection to a VoIP provider or any IP-PBX (eg: 3CX IP-PBX), you can make calls to any soft phone, mobile phone number of fixed line. With 3CX VoIP phone, you can provide significant savings on telephone bills in a very simple way: you need a broadband connection (DSL or cable), a connection to a VoIP provider or a server SIP, a headset with a microphone and / or a sound card. The installation of 3CX VoIP phone is extremely simple and only takes a few minutes.