3CXPhone FREE VoIP Phone for Windows - Version 4.0 Free VOIP / SIP phone (softphone) for Windows. Use your PC as a phone. Works with popular VOIP providers and SIP PBX's (including 3CX Phone System). The interface is easy to use and similar to that of popular Smartphones. 3CXPho n e is compact and easy to install across a network. Features include Call Transfer, Call Recording, Hold, Headset support, Call History. Full version, not a lite version! Free download from http: / /www.3cx.com Fea