Pbx Systems

Written by Jeremy Horelick
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PBX systems have been in use for decades now, especially throughout busy offices with dozens or even hundreds of employees. The idea behind PBX is simple: it basically functions as a central switcher for all phones on a given network. That means it can manage calls placed within the office (say, to another extension) or outside the office via a "trunk" or connection to your local phone company's hub.

The first thing that PBX systems do when users in the network pick up their phones is alert them that the phone lines are in use. A caller is likely to hear one type of dial tone, which is usually different in pitch from the one he or she hears at home. Should that caller wish to buzz another worker within the system, he or she would dial the extension directly without entering an exchange. To dial outside the office, that same worker would dial an 8 or a 9 first, at which point he or she would hear a dial tone to the "outside" world.

The Benefits of PBX Systems

PBX systems have much to recommend them, namely their special features, many of which we simply take for granted. Call waiting, conferencing, and voice mail are handled internally by the PBX rather than by the phone company. As you know from paying your monthly residential bill, the cost of adding these same features to your home service can pile up quickly. With PBX, however, everything is bundled into one.

Additionally, a good PBX system can handle as many as 100 calls at a time, which is good news for bigger corporations looking to streamline their telecommunications. The cost of establishing 100 separate trunks for the entire company (one for each employee) would be astronomical. By opening up trunks to the world on an as-needed basis, PBX offers a much more efficient use of resources. And in the event that all 100 employees must be on the network simultaneously, PBX can free up as many resources as it needs to accomplish this.


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