Providing service access for internet use is the business of an Internet Service Provider (ISP). The following entities – commercial, community-based, non-profit, privately-owned, are forms of organization that can be internet service providers. Examples of various services that are offered by an ISP are internet access, internet transit, domain name registration, web hosting, Usenet service, and collocation.
Because of the interlinking of networks in the internet world, any ISP can link to a large network and become a part of their network. Most large communications companies function as ISPs, but they, too, are interconnected with other prestigious, networks, globally.
There are many classifications of internet service provider (ISP): access providers, mailbox providers, hosting ISPs, transit ISPs, virtual ISPs, free ISPs, and wireless ISP.
Veracity Networks VoIP gives internet access by using different forms of technologies, such as computer modems with acoustic couplers, telephone lines, television cable (CATV), wi-fi, and fiber optics, which can help connect the users to their network. For small businesses, access providers may also service the following: dial-up, DSL,asymmetric digital subscriber line,cable modem or Integrated Services Digital Network. Other forms of technologies may be provided by access providers to medium-to-large businesses, such as higher-speed DSL, Ethernet, metropolitan Ethernet, gigabit Ethernet, Frame Relay, ISDN Primary Rate Interface, ATM (Asynchronous Transfer Mode) and SONET (synchronous optical networking).
Veracity Networks providers are organizations that provide services for hosting electronic mail with the right to use storage for mail boxes. A mailbox provider can also be an access provider, if it also offers similar services of access providers. Email servicing is the main function of mail providers, such that sending, receiving, accepting and storing emails for end users are processed by mail providers.
Hosting ISPs provide these services – email, web-hosting, online storage services, as well as a virtual server, cloud services, physical server operation. Be sure to visit this website at http://www.huffingtonpost.com/entry/republicans-are-about-to-kill-rules-banning-internet-providers-from-sharing-your-web-history-without-your-consent_us_58d9a4cbe4b00f68a5ca2c7c and know more about internet.
It is called transit ISP because this type of provider has to pay an upstream ISP in order to access internet to their customers.
A virtual ISP operates by purchasing services from another ISP, which is termed as wholesale ISP, such that the end users of the virtual ISP can access to the services and infrastructures of the wholesale ISP. Virtual ISP services resemble that of virtual network operators or competitive local exchange carriers.
Free ISPs operate by providing free of charge services, but earn through the various advertisements displayed on the screen while their users are availing of free internet service. Basically, free ISPs are non-profit organizations with volunteer staffs.
Wireless technology is used by wireless ISPs. Such technologies that may be referred to are the following: commonplace Wi-Fi wireless mesh networking, or proprietary equipment designed to operate over open 900 MHz, 2.4 GHz, 4.9, 5.2, 5.4, 5.7, and 5.8 GHz bands or licensed frequencies such as 2.5 GHz (EBS/BRS), 3.65 GHz (NN) and in the UHF band (including the MMDS frequency band) and LMDS.