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What is all that STUFF in my phone closet? Pt. 2

In the first installment of this blog mini-series we discussed all the pieces of equipment in your phone closet that the wiring initially connects to. These included:

  • 66 Blocks at the Telephone Demarcation Point
  • Data patch panels that terminate all the data jacks in your building/p>

This installment will cover the pieces of equipment that connect to these wires to make your office tick.

Las Vegas Business Telephone Systems – What You Should Know

Let’s start with what connects after your telephone demarcation point. Most businesses in Las Vegas use a telephone system or what’s referred to “in the industry” as a PBX (Private Branch Exchange) system. So what does a PBX or business phone system do? Well, a PBX at it’s heart is supposed to switch calls between users on phone lines while allowing all users to share a certain number of external phone lines. In today’s day and age, a PBX can do a lot more, features such as:

  • Voice Mail- Answer an extension and take a message for a user.
  • Auto Attendant- Answer a main group of lines with a recorded greeting and route the caller based on selection pressed.
  • Mobile Extensions- Have your phones ring at Cell phones.
  • Off-Site Forwards and Notifications- Forward or transfer calls to an external number or notify you when you have a message at an external number

Las Vegas Phone System – Brands

Some PBX Phone System Brands that are common to see in Las Vegas include:

  • Nortel
  • Avaya
  • Altigen
  • Panasonic
  • Cisco
  • Samsung

Las Vegas Low Voltage works on these brands and many more, we can help you with selection, service, phone extension moves and phone system moves and upgrades.

A few examples of what a PBX business phone system looks like installed

NortelPBX business phone system



Samsung PBX Phone System


Your data patch panels in the back room connect to two different pieces of equipment that make it so your internet connection and data between devices can be shared in your office.

The first piece is a router, or some businesses have integrated wireless routers. A router has three main functions:

  1. Packet Forwarding:

The router keeps all the information for all the other possible networks that can be reached and the best path to reach them.

  1. Packet Switching:

Moving the data from one port or interface on the router to another

  1. Packet Filtering:

The firewall function, which ensures that all data trying to enter the network is allowed.

The second piece is a network switch. Most SMB users in Las Vegas use a standard unmanaged switch. A switch is essentially a splitter for your router and enables you to plug in all your wired network devices into the same network.

phone system patch cords and network switch


Call Las Vegas Low Voltage @ (702) 309-1911 today and let us help you manage your phone system closet and all the STUFF in it.

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