(Internet Protocol Private Branch eXchange) A telephone switch that supports voice over IP (VoIP). IP PBXs convert IP phone calls into traditional circuit-switched TDM connections for the PSTN. They also support traditional analog and digital telephones, allowing enterprises to migrate slowly to an all-IP telephony environment. See IP telephony and PBX.
IP PBXs and TDM PBXs
This illustration contrasts a traditional PBX and an IP PBX that serves IP phones only. In practice, IP PBXs also support legacy telephones.
IP PBXs and TDM PBXs
This illustration contrasts a traditional PBX and an IP PBX that serves IP phones only. In practice, IP PBXs also support legacy telephones.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- X-Lite 4.0 v3 (Mac)
- A FREE premium SIP softphone with many PBX-like features. Open standards-based design allows for maximum network interoperation and integration. VoIP networks are expanding at a blistering pace, X-Lite is ready. X-Lite Features:Touch-tones [DTMF]3 LinesMultiple ProxiesLine HoldInbound Call 'Ignore'Inbound Call 'Go to Voicemail'Call Forwarding URI/URLVoicemail URLDial/ Redial/HangupDynamic CODEC SelectionCaller ID [SIP...
- Software downloads 2009-10-19
- Brekeke PBX 2.3.8.2 (Windows)
- An award-winning product, Brekeke PBX is a SIP-based IP-PBX system for call centers, enterprises and service providers. Brekeke PBX solutions are cost-effective and provide flexibility to meet each telephony system's requirements. Brekeke PBX comes in two editions: Basic Edition with traditional telephony features and Pro Edition which includes a full...
- Software downloads 2009-10-04
- The best VoIP solution is ...
- What about hosted?Wondering if you guys would be willing to discuss the most obvious omission... hosted. It's like choosing which car to buy when its cheaper to take a limo.RE: The best VoIP solution is ...Your article was only comprehensive if you consider just the IP-PBX and desktop telephone;...
- Discussion threads 2009-09-22
- SipToSis 20090902 (Windows)
- SipToSis is Java software that allows you to make and receive Skype calls from your SIP ATA, softphone, IP phone or SIP PBX. You can also make and receive SIP calls from Skype. It let's you integrate Skype into your SIP VOIP phone system.
- Software downloads 2009-09-02
- Medical Company Increases Efficiency, Looks to Reduce Travel and PBX Costs
- DynaLIFEDx is a Canadian healthcare company that provides laboratory, consulting, and management services. Previously, employees relied on phone calls and e-mail for most communications and lacked conferencing tools. An ongoing transition to an IP Private Branch Exchange PBX system was expensive and slow. With help from Long View Systems, a...
- Case studies 2009-09-01
- VoIP Plug-in for Microsoft Fax Free Edition (Windows)
- Are you using Microsoft Windows? Do you have VoIP? Send and receive faxes with free SIP T.38 Plug-in. This free plug-in enables Microsoft Fax and Windows Fax & Scan, which are built right into business versions of Windows, to send and receive faxes via SIP T.38 using your current VoIP...
- Software downloads 2009-08-26
- VaxTele SIP Server SDK 2.0 (Windows)
- VaxTele SIP Server SDK Development Kit is a new and flexible approach to develop SIP based VoIP servers, IP-PBX, SIP gateways, SIP PBX. It is really easy to develop IP-Telephony, PC to PC and PC to Phone services by using VaxTele SIP Server SDK. VaxTele SIP Server SDK includes COM...
- Software downloads 2009-08-20
- IVM Telephone Answering Attendant 5.02 (Windows)
- IVM is a telephone answering machine, voice mail, call attendant, and interactive voice response IVR program for Windows. It connects to the phone using a professional telephony board or directly to a VoIP service. This software is an effective voice mail, call attendant, info-line, audio text or autodial solution for...
- Software downloads 2009-08-19
- Focus Research: VoIP Call Center Research
- Premise-based IP PBX Internet Protocol Private Branch eXchange systems are changing how businesses implement and use their voice communications. IP PBX systems are cheaper and far more capable than their predecessors. They also integrate much better into business networks and data communications which, in turn, enable new applications that...
- White papers 2009-07-20
- Focus Research: 6 Signs That You Need to Upgrade Your Business Phone System
- This information-packed guide compares the top 12 VoIP phone system and IP PBX providers for the enterprise. We've taken the guesswork out of your decision making! This informative comparison guide will allow you to make an insightful comparison of basic functions, features, pricing and more across the...
- White papers 2009-07-20
- IP Phone Comparison Guide
- This FREE, information-packed comparison guide compares the top 7 hosted PBX providers for small to midsize businesses. See which vendors and solutions can improve how your company, employees and customers communicate! This FREE side-by-side comparison guide looks at the industry's top 11 Hosted VoIP PBX vendors and...
- White papers 2009-07-17
- Network Serial Port Kit 5.6.2 (Windows)
- You can connect data collection serial devices: bar code scanners, modems, sensors, gages, RF equipment, telephone PBX systems, laboratory or industrial instruments, and so on - to the serial ports of your computer to deliver that data anywhere over any TCP/IP based network. Program creates up to 254 virtual serial...
- Software downloads 2009-07-05
- VOIP reaches end of its proprietary era
- VOIP reaches end of its proprietary eraVoIP was never proprietary, Skype IS.VoIP is not and has not been proprietary since almost the beginning. It is Skype's implementation of VoIP that is proprietary. Both their signaling protocol and their Codecs.Most VoIP systems started out using H.323 standards and then migrated...
- Discussion threads 2009-05-21
- The Real Reason Why Acme Packet Bought Covergence
- Last week the SBC market was shaken up when Acme Packet purchased Covergence, Inc. At first glance, this would seem to be a simple consolidation play with a large competitor purchasing a smaller rival. Yet behind the scenes, Covergence gives Acme Packet some important strategic technologies that could ultimately enable...
- Blog posts 2009-05-06
- 3CX Phone System 7.1 (Windows)
- 3CX VOIP Phone System 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 and manage via Web-based config. Eliminates phone wiring, allows...
- Software downloads 2009-05-06
- Utility Company Boosts Productivity, Protects Investment With Unified Communications
- Empresas Publicas de Medellín EPM, one of the largest municipally owned utility companies in Colombia, has many offices throughout the state of Antioquia. Employees in different locations often need to communicate and collaborate with one another on projects and teams. Anticipating continued growth, EPM wanted to streamline and modernize its...
- Case studies 2009-05-01
- D-Link Partner the Fulcrum Group Designs Custom, Low-Cost IP-PBX Solutions for Small Businesses With D-Link Switches
- The Fulcrum Group provides networking, security and voice-enabled technology solutions for organizations in the Dallas/Fort Worth area. Fulcrum deliver a complete solution that includes IP PBX equipment, all the phones, the switching components and all the labor necessary to implement the solution. The big challenge is submitting bids that are...
- Case studies 2009-04-30
- RoamCall LCR (Mobile)
- RoamCall LCRSmart Dialer with Least Cost Roamingfor Symbian S60International calls from your mobile phone are very expensive, especially when roaming. Many Calling Card and Callback services and PBX devices offer lower costs by routing calls via the internet and VoIP. Unfortunately, using these services from your mobile phone is often...
- Software downloads 2009-04-14
- What's going on with Skype for Business?
- Rumors coming out of Skype have it that the company is going to be taking a fresh look at the business market once again. Skype has long said that a large percentage of its customers are business users. I believe it. I've almost completely switched over to...
- Blog posts 2009-03-02
- College Enhances Communications, Will Save $25,000 With Unified Communications
- Davidson College, a liberal arts school in North Carolina, has an aging PBX-based telephone system that is expensive to maintain and will be costly to replace. In anticipation of having to purchase and install a new system, the school's IT department decided to deploy a new unified communications solution based...
- Case studies 2009-03-01
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