Posted by peter on 10/5/07 in
VoIP + telephony
What is VoIP?
VoIP, or Voice over Internet Protocol, refers collectively to a set of technologies that allow for voice conversations to be transmitted via the Internet.
What is a PBX?
A PBX, or Private Branch eXchange, is a device - with or without software - that allows a business entity to easily configure and manage a block of phone numbers. Many medium to large businesses use PBXes for employee phones, over the PSTN (public switched telephone network).
What is an IP PBX?
An IP PBX is simply a PBX designed to work over the Internet. With some IP PBXes, everything is software based. Others have hardware components that allow for integration with the PSTN.
Why VoIP and IP PBXes?
VoIP and IP PBXes allow businesses to have advanced communications features at lower rates than with regular PSTN based technology. Part of the reason for lowered costs is a single set of wiring (your computer network), and the other is software based features. Additionally, if you’re using SIP-based IP PBXes and equipment, you have a wide array of equipment to choose from, instead of being bound to proprietary hardware of typical PSTN-based PBX makers.
What are 3CX’s Features?
Depending on your viewpoint, 3CX’s MS-Windows-based IP PBX phone system’s most important feature is that it is based on the SIP (Session Initiation Protocol) VoIP standard. Besides making it thus compatible with other SIP VoIP systems software and hardware, phone numbers need not change when an employee has to move offices.
The 3CX system offers a VoIP Gateway, which allows it to be integrated with PSTN phone lines. So you can have a hybrid setup where internal calls are over VoIP and calls to and from outside the office are over PSTN.
Summary
3CX offers a fully integrated business grade VoIP solution with their partner netVortex. If you’re not yet ready to take a full plunge into enterprise IP PBXes, you can download a copy of their free edition, which includes a SIP server. This package works on Windows 2000, 2003, XP, Vista, and offers voice mail, call transfer and other features - all supported at their 3CX forums. You wil need a proper SIP-based phone.
[Disclaimer: This is a paid review for 3CX sourced through ReviewMe.]