open source, MIT license

Requirements: .NET Framework 3.5 SP1

Being able to communicate to your employees is crucial to your company's success. If you have a LAN, or even a secured Intranet network, then you posess a resource that is capable to make a voice and video call over IP and to deliver instant messages, and it is just the time to consider a enterprise VoIP SIP server for Windows.

SIP, the session initiation protocol, is an open protocol for VoIP and other text and multimedia sessions, like instant messaging, voice, video and other services.

VoIP calls were always a great way to save. Free calling between computers is fully supported by OfficeSIP Server. To make it simple, install the SIP server, run free OfficeSIP Messenger of Softphone and start talking! OfficeSIP Server enables voice calling in Windows Messenger, X-Lite and similar software-based open protocol SIP clients. OfficeSIP Server is designed for IM, enabling VoIP communications in SIP-compliant software and hardware clients.

Don't like using computers for talking? Training employees costs more than anticipated savings? No need to change the workflow in your office! The SIP server allows using regular telephones for intra-office and inter-office calling without paying. Being a fully compliant, open-protocol SIP product OfficeSIP Server enables free VoIP communication between remote locations with no computers. Connect your wired or wireless office phones, handsets or headsets to inexpensive SIP devices and communicate for absolutely free in a convenient and customary manner!

OfficeSIP Server is designed for modern offices and runs on any Windows PC. No crippled command line and no config files to fine-tune. Install and configure OfficeSIP Server from within the comvenient graphical user interface. OfficeSIP Server requires minimum configuration and zero maintenance. Install OfficeSIP Server and start saving immediately!

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