Definition of PBX System

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Tip 1 - What is private branch exchange (PBX) ? - Definition from WhatIs.com

Published: 9 years, 4 month(s) ago | Submitted by Matt Mountain | permalink

A PBX (private branch exchange) is a telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external phone lines.

For further reading: http://searchunifiedcommunications.techtarget.com/definition/private-branch-exchange ^[1]

Tip 2 - What is IP PBX (private branch exchange) ? - Definition from WhatIs.com

Published: 9 years, 4 month(s) ago | Submitted by Ailce Duarte | permalink

An IP PBX is a private branch exchange (telephone switching system within an enterprise) that switches calls between VoIP (voice over Internet Protocol or IP) users on local lines while allowing all users to share a certain number of external phone lines.

For further reading: http://searchunifiedcommunications.techtarget.com/definition/IP-PBX ^[2]

Tip 3 - What is a PBX Phone System?

Published: 9 years, 4 month(s) ago | Submitted by Jeffrey Pancottine | permalink

This FAQ provides you with all you need to know about a PBX Phone System.

For further reading: http://www.3cx.com/pbx/pbx-phone-system/ ^[3]

Tip 4 - What is a PBX?

Published: 9 years, 4 month(s) ago | Submitted by Andy Cameron | permalink

What is PBX? PBX stands for Private Branch Exchange. It is a PSTN telephone network used within a private enterprise. Users inside a PBX share outside lines which they use to make phone calls external to the PBX. A PBX specifically made for VoIP is called an IP-PBX. Asterisk is a good open-source PBX software.

For further reading: http://voip.about.com/od/glossary/g/whatisPBX.htm ^[4]