3CX Ltd - Editor

3CX Phone System for Windows Free
3CX Phone System Free edition is a SIP based IP PBX. Scaleable, eliminates phone wiring and lowers call costs via VOIP providers. Developed for Windows - Easy to install and configure! Download FREE edition with no limitations or time outs.

3CX VOIP Phone for Windows
Free VOIP / SIP phone. Use your PC as a phone. Works with any SIP/ VOIP provider/ phone service. Easy to use interface to transfer, forward calls or set-up conference calls. Free download from http://www.3cx.com