Now our next virtual appliance is going to be a virtual PBX. Now what is a P B X? That's the first thing we need to know. What the P B. X stands for a private branch exchange and a PBX is essentially a telephone switching call manager. So if we have an office where we have a an analog,
an analog PBX, we have analog phones, which connect over a telephone line to PB X device. Connect to a punch down closet with punch downs for telephone connections, and we have a connection out to a mainline. Then R P B X is going to be our device, which performs
are four main telephone functions which are
establishing connections. So R P B X is going to take connections and are going to establish them to the correct phone number are going to maintain. These connections
are going to disconnect the connections when they're no longer needed and are going to provide us with call info information such as who was who was the caller to and from what type of our what was the destination? Was it a external to an internal call? Was it a extension to extension call
s. So that's gonna be what R. P B. X does
now, with the advent of virtual ization of the advent of cloud hosting and allowing and network is a service, we can have virtual PBX is that replace these hardware? PBX is now These virtual PBX is we may still need a call agent. We may need a
some sort of device which manages the calls which
allows us to provide us provides us with different call information. We may even have a call agent installed on our computer. If we're using voice over Internet protocol where we have a phone on our computer rather than voice over Internet protocol physical phones, then we may need a call agent on our computer.
And virtual PB exes can be used from everything from a small office to a large call center.
So let's take a closer look at our diagram and see how our virtual PBX will function.
So our virtual in our virtual PBX environment here we have two main distinct boxes. Are we rather havoc? Actually, three main distinct sections are first section over here is going to be our main office, so
we have our main office with our
500 telephone lines are 500 of these air all voice over I p lines. So there these are voice over I p phones eso we have 500 lines, multiple multiple routers, multiple switch environment and then we have our small home worker
are multiple home workers. So say our company has initiated a
one day a week work from home policy where if your work can be done at home, if you're not someone who has to be in office to do work and you can work on some materials from home than in order to save resource is and go green and help save the environment and help save some sanity, they allow you one day a week where you can work from home.
even when you're working from home, you still may need to make calls. You have to communicate with your co workers. You don't want tohave,
all of your co workers and all of your clients necessarily given your home phone number because they may not give you be giving you the courtesy of only calling your home phone on the days you're working from home.
So we need to have a solution that allows us tow. Have all of these different voice over I P lines are 500 office voice over I P lines must still allow workers to call in and connect from home all while looking like they're calling from the office. So how do we do that?
Well, we have our virtual PBX here out on the Internet, and our virtual PBX is gonna be hosted by a certain service provider. That's going to say OK, all you need to do is you need to set up your infrastructure so that you can connect.
You can connect virtual phone. You can connect your physical phones and your virtual installed phones on your computer,
and they can somehow connect to the Internet. And if they can connect to the Internet and you give us the right information and you give us the Mac address numbers to assign these two these computers than they can make calls out,
so let's. So how does this work? Let's start with our physical phones
so our physical phones don't connect with a typical phone line. They may connect. Probably connect with an Ethernet cable like the cable that will plug into our computer.
are all assigned a phone number.
So they have a physical phone number that could be called a CZ well, as an extension. So they may have a phone number. So they have an office phone number, and then an extension
Each of our different office, the offices. D'oh! So we have our main office here with our 500 phones, and we connected down to a router and we connected down to an office switch. And this and this switch manages three separate phones. So these three separate phones have extension to await
Now, these phones are neat going to connect out to the Internet
and connect to our virtual PBX. And our virtual PBX is going to act as our telephone call and switch manager just like a physical PBX is going to establish connections, maintain those connections, disconnect the connections and provide us with the call information.
So we have our physical phones now, those work, just as you would expect to pick up the phone and you make calls
we have our home worker. We have extension to 10. She's out of the office today.
So how is she going to make sure that she receives all of these phone calls to to the extension to 10 without necessarily setting up call forwarding to her home line?
two tens work computer on her work from home Laptop is a virtual is a virtual phone,
and all she has to do is plug in her headset to her computer and can make calls. Justus if she was sitting in the office
and we take this computer's Mac address and remember, our Mac address is going to be a globally unique Mac address, and we're going to say, OK, this Mac address, we're going to assign the extension to 10.
Susan is out of the office.
She opens up her laptop. She logs into her virtual private network. She logs into her VP and back to the office, and then she pulls up her
phone on her computer. And then, if someone calls extension to 10 the virtual PB X is going to say, OK, I have a computer here listed as extension to 10. I know it's Mac address. I know what network it should be connected into, and it's gonna go ahead and pass that call along to our computer
using the virtual PBX.
So we see the functionality that our virtual PV X can manage for us and how it can be used for office environments as well as our home environments. And even without this additional home user
just having our virtual PB virtual PBX, this outsourced PBX service way may not have to actually manage as much on our internal network. We may not need to install is much hardware, manages much hardware. And if
something is wrong with the PBX service, then we may not have to schedule someone to come out and take a look and check wires
that will all be done by the virtualized service that all be done by the service that we contract ID to. You run our PBX so it takes a little bit more. It takes a little bit of management in order to get it all set up and to set up our actual VoIP phones are our phones that connect to our virtual PBX service. But once we do
and once we get it set up,
we'll be able to have a little bit less stress on our environment a little bit less. We have to manage. And as long as we have a good virtual PBX provider, we may be able to have a bit more steady connections and be able to
do things such as allow people from home to connect in and have have the same phone line they do when they're in the office.