![]() The following diagram shows accessing internet using ISDN connection: DSLĭSL is acronym of Digital Subscriber Line. The PRI ISDN consists of 23 B channels and one D channels with both have operating capacity of 64kbps individually making a total transmission rate of 1.54Mbps. The BRI ISDN consists of three distinct channels on a single ISDN line: t1o 64kbps B (Bearer) channel and one 16kbps D (Delta or Data) channels. There are two techniques to deliver ISDN services: It establishes the connection using the phone lines which carry digital signals instead of analog signals. ISDN is acronym of Integrated Services Digital Network. The following diagram shows the accessing internet using modem: ISDN There is also a communication program that instructs the modem to make a call to specific number provided by an ISP.ĭial-up connection uses either of the following protocols: This modem works as an interface between PC and the telephone line. It requires a modem to setup dial-up connection. Following are these connection types available:ĭial-up connection uses telephone line to connect PC to the internet. There exist several ways to connect to the internet. Free ISPsįree ISPs do not charge for internet services. Such ISPs offer internet access via other ISP services. Hosting ISPs offers e-mail, and other web hosting services such as virtual machines, clouds etc. Such providers offer mailbox hosting services. They provide access to internet through telephone lines, cable wi-fi or fiber optics. ISPs can broadly be classified into six categories as shown in the following diagram: Access providers Internet Service Provider (ISP) is a company offering access to internet. internet service providers, software and hardware requirements, configuring internet connection etc. Here in this tutorial, we will discuss how to connect to internet i.e. ![]()
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