3CX VOIP Phone – a FREE VOIP softphone for Windows

3CX VOIP softphone is a completely free Windows application with which you can initiate and receive telephone calls using your PC, laptop or notebook. 3CX, the company behind the award-winning and pioneering 3CX Phone System for Windows, is the developer of 3CX VOIP softphone.

3CX VOIP softphone Technical Requirements & Interoperability

Installing 3CX VOIP softphone in your computer is not enough to make phone calls outside your local network. You must be connected to a VOIP Provider or a VOIP/SIP server.  3CX VOIP softphone is compatible with all the most popular VOIP Providers. For a list of VOIP providers that have been tested with 3CX Phone System for Windows and 3CX VOIP softphone click here.

To operate your 3CX VOIP softphone you need:

• A VOIP provider/ SIP server connection
• A PC / laptop / notebook running on: Windows 2000, XP, 2003, Server or Vista
• A broadband internet connection
• A headset with a microphone and/or sound card
• The following information from your VOIP Provider: IP, authorization ID, password