Free VOIP / SIP phone (softphone). Use your PC as a phone. Works with any SIP / VOIP provider/ phone service. Use instead of the soft phone provided by your VOIP provider which locks you into their VOIP phone service. Easy to use interface to transfer, forward calls or review history of calls. Call log, caller ID, integrates with MS Outlook. Available in many languages. Free download from http://www.3cx.com.

3CX Phone System for Windows Free edition is an Office Phone System/IP PBX that completely replaces a proprietary PBX, supports standard SIP soft/hard phones from any vendor, VOIP service providers & traditional PSTN phone lines. Developed for Windows, it is easy to install, configure & manage via web-based config. Scalable, eliminates phone wiring, allows hotdesking & roaming, saves on call costs & includes auto attendant. Download FREE edition!