Internet requests are sent to the isp who then

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Internet requests are sent to the ISP, who then forwards the request to the Internet. Most wireless networks are local area networks that are connected to the Internet using a wired method (such as DSL or another broadband solution). Some metropolitan areas provide free, city-wide wireless or wired Internet connectivity. This type of network is known as a metropolitan area network (MAN). Because many Internet service providers also provide other services (such as cable TV or telephone), you can often combine services to get Internet access with other services. Voice over IP (VoIP) sends voice phone calls using the TCP/IP protocol over digital data lines. o With VoIP, phone calls are made through your Internet connection, not through a phone line. o When you make a phone call, the call is converted into digital data and sent through the Internet. o VoIP is provided by many ISPs to replace existing analog telephone lines (even using the same phone number). o Desktop computers can be used to make VoIP calls by using VoIP software and the computer's microphone and speakers. The most common example of this is the VoIP application Skype. Creating a Dial-up Internet Connection 0:00-4:14 In this demonstration, we're going to discuss configuring a dial-up connection. Now dialup connections are not used very often anymore, but there still may be some situations where they're necessary so we're going to walk through the steps for doing that here. Now notice down here in my Notification area and when I hover over my network connection icon, then I am not connected. I have no network connection. I have no access to the Internet. I don't have a wired connection, I don't have a wireless connection. Therefore in order to connect to the Internet, what I'm going to do is use a modem to dial a modem at my ISP site and establish a connection through the public switched telephone network so I've already connected a modem to this system. if I right-click on my Windows icon and then go to device manager, notice that I have a communications port configured on this system, COM2, that's currently enabled and if I expand modems, I see my standard 56K modem, which is actually plugged into this serial port right here on the back of the system, COM2, so with that modem connected and the necessary drivers loaded, I can use it to dial another modem at my ISP site through the telephone network. To do this we need to right-click on our Windows icon and then go to Control Panel and then access the Network and Sharing Center. Within the Network and Sharing Center, we have to set up a new network connectionso I'll click this option and I need to use this first option right here, connect to the Internet. Notice here it tells us that we can use this option to set up a dialup connection. That's what we want to do so I'll click Next. Now I have to specify how I want to connect. Do I want to connect using a DSL or cable connection or do I want to establish a dialup connection through the public switched telephone network. That's what we're going to do in this demonstration so I'll click Dial-up. So in this screen we have to configure the
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connection to the Internet service provider's modem bank so the first thing we have to specify is the phone number. We have to specify our
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  • Spring '14
  • Computer network, Local area network, Network topology, Metropolitan area network

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