
Which is the best PBX system for Windows? 3CX Free Edition is one of the many ‘free’ pbx, unlike other open source where tech support will cost you a bomb, 3CX is really free.
- Unified communications – Receive voice mail via e-mail & see user presence
- Auto attendant (e.g. 1 for sales, 2 for support, etc.)
- Reduce long distance and inter office call costs
- Call conferencing: Host your own conference calls

An IP (Internet Protocol) PBX (Private branch exchange) is a business telephone system designed to deliver voice or video over a data network and interoperate with the normal Public Switched Telephone Network (PSTN). (Source: Wikipedia – IP-PBX)
For more information, download 3CX Phone System brochure for a detailed explanation and comparison between the ‘free edition’ and enterprise paid version.

What is an IP-PBX business phone system?
An IP-PBX business phone system is just like a traditional PBX, the only main difference is IP-PBX uses the latest IP routing technology. Signaling takes place from the IP phone to the PBX server over your LAN. If you’re looking for an open source ‘free’ pbx software, Asterisk is the answer. Like any open source software, technical support is not free.
Traditional connections can be regular copper lines or a T1 with a PRI circuit, however, the IP-PBX is provided by a telecom equipment company who connects the system to providers using gateway cards.
Advantages of a Windows based PBX
- Hardware & Vendor independent – no vendor lock in!
- Better fault tolerance through easy backup of your PBX
- A Windows based PBX is more scalable
- Better Integration with other business applications
- Easily build voice applications that increase productivity
In conclusion, a Windows based PBX is easy to install, easier to manage, better integration and lower cost.
Next / Part 2: The Best Virtual PBX Server Software For Windows
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