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It uses a HTML5 based web player by default to stream and show video files. A sequence of undersea earthquakes cut six out of seven international cables connected to that country and caused a tsunami that wiped out one of its cable and landing stations. However, our Speed Test Plus also checks line quality of the connection coming from your broadband provider. As broadband Internet connections become commonplace, more workers have adequate bandwidth at home to use these tools to link their home to their corporate intranet and internal communication networks. Downloaded by over 20,, users worldwide.

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Payment by direct debit. For new BT TV customers. App available on up to 2 compatible devices Android 4. A 10m cable will be provided. Bolt—ons available on a one month minimum term. Free for first three months. One month minimum term. If you watch Netflix on YouView it will not count towards your broadband usage. Watching on your laptop or other device will. AMC is a separate bolt-on bonus channel and may be removed at any time.

Both charges are calculated excluding VAT, so when we round the price and add the VAT, some calls will round up by up to 2p, depending on the length of the call.

Includes calls to landlines in 36 International destinations. For residential customers on a BT Calling Plan. Minimum 1 month term. Fair use policy calls over minutes a month will be charged at 6p a minute and Terms and Conditions apply. Some regions are included or excluded within countries: Five users per account. SmartTalk allows you to access your calling plan on your smartphone. UK time zone applies.

Opt-in for international, premium 09 and personal calls. It's easy to set these up after you've downloaded the app. Just press the Create BT Login button. No minimum call commitment applies. The call return feature will not be available if the person leaving the message has chosen to withhold their number or if the call was from an international number. Customers who use Call Barring should note that calls to will be barred under outgoing Call Barring option 1. This is because calling may lead to a chargeable call.

Some social alarm and burglar alarm equipment may not be compatible with BT Answer Please check with your supplier. Dialling BT without using Call Return is free. The Call Return feature of BT costs a fixed fee of 35p. The fee will apply when you press 3 to return your last caller's call. This charge applies whether or not the call is connected.

If you don't want your number to be obtained through Caller Display or Call Return , dial before making your call. To block nuisance calls you need the Caller Display service to be active on your account. Calls to and numbers are included within your inclusive call times excluding Calling Card, Dial-through and dial-up internet access numbers. Any calls over an hour will be charged at normal rates you can hang up and redial to avoid these charges.

Fair usage policy applies. Maximum minutes or calls a month. If either of these limits on inclusive calls is exceeded, BT will charge for these calls until further notice. Advance charge is non-refundable. You'll need to pay any additional call charges by Direct Debit. Connection charges may apply for new connections.

There's a 12 month minimum term. Exclusions and conditions apply. Calls to 01, 02, and 03 numbers, excluding the Channel Islands, indirect access numbers and dial-up internet access. Redial within 60 minutes to avoid charges. Calls to numbers cost no more than 49p per minute, with a max.

Click here for our full tariffs. You'll need to pay by direct debit. Available to new and existing BT customers that sign up for an 18 month minimum term. Also included when you opt in are: Available to new and existing standard BT line rental customers. A month minimum term applies for new line rental contracts. You can pay for Line Rental Plus by any method unless you take another service that requires payment by Direct Debit. Connection charges may apply.

PromptCare operates between 8am and 6pm on weekdays and Saturdays. We aim to repair a fault by midnight on the next working day after you report the fault to us unless a specific appointment date is agreed.

Faults reported after 9pm Monday to Saturday, or anytime on Sundays or on public or bank holidays, will be treated as if you reported the fault at 8am on the next working day. PromptCare is not available on telephone lines provided using fibre technology. New month BT Broadband contract required. Maximum of 2 devices may be used simultaneously. Prices and BT Sport content subject to change at any time. Sky box and active viewing card required. There's a one month minimum term.

It must be taken with a standard BT Sport subscription. If you've got a broadband special offer, you'll keep it on the same terms you originally agreed to — including when it ends. The basic price of BT broadband stays the same: For some customers it can take up to 24 hours or longer in exceptional cases. One discount code per mobile phone purchase. You must redeem your discount code within 9 months of our order confirmation email.

There is no cash alternative to this offer. Any purchase made will be subject to BT Shop standard terms of sale. BT reserves the right to suspend or cancel the offer at any time.

Limited to available caps. BT Mobile customers get access to the wi-fi hotspots already available to existing BT Broadband customers. The speeds you get on your phone will be lower, and depend on things like the number of users, distance from the mast and the type of 4G phone you have.

This add on is valid from the moment you buy it and then runs on a 30 day rolling contract. Available to all new and existing BT Mobile customers. Subject to credit check. All calls or texts charged as per your BT Mobile plan. Available on selected enabled BT Mobile handset plans and iPhone 6 and above. Available on selected enabled BT Mobile handset plans. For BT Wi-Fi see: More places than 02 and Vodafone and Three: A new month line rental contract applies.

No minimum call commitment. Caller Display equipment is required. You can do this at bt. You might have to pay an upfront fee for your device. If this payment fails for example due to lack of funds , your pre-order may be cancelled. You can cancel your pre-order at any point until we charge your card for this upfront fee.

This does not affect your statutory rights to change your mind within 14 days of receiving your device and only pay for the services you have used. If this payment fails for example due to lack of funds , your back-order may be cancelled. You can cancel your back-order at any point until we charge your card for this upfront fee. Discounted price for BT broadband homes excludes business.

Payment is by direct debit and subject to credit status. Speeds vary by location, coverage and demand. One minute minimum call charge. Service numbers beginning , , 09 and have an access charge of 30p per minute plus a service charge set by the company you call.

Early termination charge may apply if you stop your service in the first 24 months, see bt. You're not unable to unlock within the first 6 months of your contract. The exception is where you've ceased your BT Mobile service and have paid your final bill which would include the early termination charges.

We will not unlock any handsets which have been reported lost or stolen. We aim to unlock all devices within 72 hours. If we need to contact the manufacturer to get a code, it may take 10 days. BT broadband homes excludes business. Subject to stock availability. With Extra Speed, the maximum speed available through the network is capped at 60 Mbps rather than 30 Mbps on our standard 4G.

These add-ons run on a 30 day rolling contract until you cancel them. It covers minutes or data used over your inclusive plan allowance, up to the allowance for that Add-On, from your last BT Mobile bill until your next one.

Add-On allowances reset at the start of each billing month. You can only have one data and one minutes Add-On at any one time. So if you buy a MB Add-On 10 days before the date of your next bill, it'll cover the data you use for those days and the previous The add-on renews automatically every month on the date you get your BT Mobile bill, unless you cancel it.

If you don't want your UK Add-On to renew automatically, you'll need to contact us to cancel it before the date of your next BT Mobile bill. You can still carry on using it until the date of your next bill and we won't charge you again. Any unused allowance won't carry over when your billing month ends. And if you go over your allowance, standard charges will apply. You can have a maximum of one for minutes and one for data at any one time. We won't transfer or refund UK Add-Ons.

They're for your personal use and subject to BT Mobile Service terms and conditions. You will need to have ordered a BT Mobile plan online during a promotional period and waited 30 days before claiming. Your reward card could take up to 30 days from claim date to arrive. On receipt you must activate the card within 3 months via the activation code, which will be sent to you by email to the email address provided with your order.

The card is a non-reloadable prepaid card with no cash access ATM or cash back. Unspent funds which remain on the card after expiry date printed on the card cannot be redeemed. The card cannot be used at any Customer Activated Terminals such as but not limited to pay pump, toll roads, car parks or train ticket terminals , for subscriptions automated periodic payments, to withdraw cash via cashback ATM, foreign exchange bureaus, gambling, or any illegal goods services.

The prepaid card offer is open to UK residents only, over the age of BT Mobile Rewards will be sent to the address where we delivered your BT Mobile product If you end your agreement for service before the end of the minimum contract period you'll have to pay an early termination charge.

You can see details at: If a reward was offered on the date you placed your order, it will expire 3 months after the date your broadband order was installed or mobile order activated, unless you claim your reward. BT reserves the right to remove the offer at any time. Rewards are subject to suppliers own terms and conditions. Available to New and Existing customers excludes business.

Payment is by Direct Debit and subject to credit status. One-minute minimum call charge. BT Mobile terms of service apply to all customers taking up any of these offers, and are available at www. Ends 27 th September Available to new and existing BT Mobile customers.

Excludes Samsung J3, Nokia 3. Exclusive- 24 GB for the price of 6GB and 6 months half price for 24 months on featured handsets. Excluding Samsung J3, Nokia 3. Featured Data SIM offers: This is encouraging new ways of working from home, collaboration and information sharing in many industries. An accountant sitting at home can audit the books of a company based in another country, on a server situated in a third country that is remotely maintained by IT specialists in a fourth.

These accounts could have been created by home-working bookkeepers, in other remote locations, based on information emailed to them from offices all over the world.

Some of these things were possible before the widespread use of the Internet, but the cost of private leased lines would have made many of them infeasible in practice. An office worker away from their desk, perhaps on the other side of the world on a business trip or a holiday, can access their emails, access their data using cloud computing , or open a remote desktop session into their office PC using a secure virtual private network VPN connection on the Internet.

This can give the worker complete access to all of their normal files and data, including email and other applications, while away from the office. It has been referred to among system administrators as the Virtual Private Nightmare, [94] because it extends the secure perimeter of a corporate network into remote locations and its employees' homes.

Many people use the World Wide Web to access news, weather and sports reports, to plan and book vacations and to pursue their personal interests. People use chat , messaging and email to make and stay in touch with friends worldwide, sometimes in the same way as some previously had pen pals.

Social networking websites such as Facebook , Twitter , and Myspace have created new ways to socialize and interact. Users of these sites are able to add a wide variety of information to pages, to pursue common interests, and to connect with others. It is also possible to find existing acquaintances, to allow communication among existing groups of people.

Sites like LinkedIn foster commercial and business connections. YouTube and Flickr specialize in users' videos and photographs. While social networking sites were initially for individuals only, today they are widely used by businesses and other organizations to promote their brands, to market to their customers and to encourage posts to " go viral ".

A risk for both individuals and organizations writing posts especially public posts on social networking websites, is that especially foolish or controversial posts occasionally lead to an unexpected and possibly large-scale backlash on social media from other Internet users.

This is also a risk in relation to controversial offline behavior, if it is widely made known. The nature of this backlash can range widely from counter-arguments and public mockery, through insults and hate speech , to, in extreme cases, rape and death threats. The online disinhibition effect describes the tendency of many individuals to behave more stridently or offensively online than they would in person.

A significant number of feminist women have been the target of various forms of harassment in response to posts they have made on social media, and Twitter in particular has been criticised in the past for not doing enough to aid victims of online abuse. For organizations, such a backlash can cause overall brand damage , especially if reported by the media.

However, this is not always the case, as any brand damage in the eyes of people with an opposing opinion to that presented by the organization could sometimes be outweighed by strengthening the brand in the eyes of others.

Furthermore, if an organization or individual gives in to demands that others perceive as wrong-headed, that can then provoke a counter-backlash. Some websites, such as Reddit , have rules forbidding the posting of personal information of individuals also known as doxxing , due to concerns about such postings leading to mobs of large numbers of Internet users directing harassment at the specific individuals thereby identified.

In particular, the Reddit rule forbidding the posting of personal information is widely understood to imply that all identifying photos and names must be censored in Facebook screenshots posted to Reddit. However, the interpretation of this rule in relation to public Twitter posts is less clear, and in any case, like-minded people online have many other ways they can use to direct each other's attention to public social media posts they disagree with. Children also face dangers online such as cyberbullying and approaches by sexual predators , who sometimes pose as children themselves.

Children may also encounter material which they may find upsetting, or material which their parents consider to be not age-appropriate. Due to naivety, they may also post personal information about themselves online, which could put them or their families at risk unless warned not to do so.

The most popular social networking websites, such as Facebook and Twitter, commonly forbid users under the age of However, these policies are typically trivial to circumvent by registering an account with a false birth date, and a significant number of children aged under 13 join such sites anyway.

Social networking sites for younger children, which claim to provide better levels of protection for children, also exist. The Internet has been a major outlet for leisure activity since its inception, with entertaining social experiments such as MUDs and MOOs being conducted on university servers, and humor-related Usenet groups receiving much traffic. Another area of leisure activity on the Internet is multiplayer gaming. While online gaming has been around since the s, modern modes of online gaming began with subscription services such as GameSpy and MPlayer.

Many people use the Internet to access and download music, movies and other works for their enjoyment and relaxation. Free and fee-based services exist for all of these activities, using centralized servers and distributed peer-to-peer technologies. Some of these sources exercise more care with respect to the original artists' copyrights than others. Internet usage has been correlated to users' loneliness.

Cybersectarianism is a new organizational form which involves: Overseas supporters provide funding and support; domestic practitioners distribute tracts, participate in acts of resistance, and share information on the internal situation with outsiders. Collectively, members and practitioners of such sects construct viable virtual communities of faith, exchanging personal testimonies and engaging in the collective study via email, on-line chat rooms, and web-based message boards.

Cyberslacking can become a drain on corporate resources; the average UK employee spent 57 minutes a day surfing the Web while at work, according to a study by Peninsula Business Services. Carr believes that Internet use has other effects on individuals , for instance improving skills of scan-reading and interfering with the deep thinking that leads to true creativity.

Electronic business e-business encompasses business processes spanning the entire value chain: E-commerce seeks to add revenue streams using the Internet to build and enhance relationships with clients and partners. While much has been written of the economic advantages of Internet-enabled commerce , there is also evidence that some aspects of the Internet such as maps and location-aware services may serve to reinforce economic inequality and the digital divide.

Author Andrew Keen , a long-time critic of the social transformations caused by the Internet, has recently focused on the economic effects of consolidation from Internet businesses.

Telecommuting is the performance within a traditional worker and employer relationship when it is facilitated by tools such as groupware , virtual private networks , conference calling , videoconferencing , and voice over IP VOIP so that work may be performed from any location, most conveniently the worker's home.

It can be efficient and useful for companies as it allows workers to communicate over long distances, saving significant amounts of travel time and cost. As broadband Internet connections become commonplace, more workers have adequate bandwidth at home to use these tools to link their home to their corporate intranet and internal communication networks.

Wikis have also been used in the academic community for sharing and dissemination of information across institutional and international boundaries. Queens , New York has used a wiki to allow citizens to collaborate on the design and planning of a local park. The Internet has achieved new relevance as a political tool. The presidential campaign of Howard Dean in in the United States was notable for its success in soliciting donation via the Internet.

Many political groups use the Internet to achieve a new method of organizing for carrying out their mission, having given rise to Internet activism , most notably practiced by rebels in the Arab Spring. Many have understood the Internet as an extension of the Habermasian notion of the public sphere , observing how network communication technologies provide something like a global civic forum. However, incidents of politically motivated Internet censorship have now been recorded in many countries, including western democracies.

The spread of low-cost Internet access in developing countries has opened up new possibilities for peer-to-peer charities, which allow individuals to contribute small amounts to charitable projects for other individuals. Websites, such as DonorsChoose and GlobalGiving , allow small-scale donors to direct funds to individual projects of their choice.

A popular twist on Internet-based philanthropy is the use of peer-to-peer lending for charitable purposes. Kiva pioneered this concept in , offering the first web-based service to publish individual loan profiles for funding. Kiva raises funds for local intermediary microfinance organizations which post stories and updates on behalf of the borrowers. Kiva falls short of being a pure peer-to-peer charity, in that loans are disbursed before being funded by lenders and borrowers do not communicate with lenders themselves.

However, the recent spread of low-cost Internet access in developing countries has made genuine international person-to-person philanthropy increasingly feasible. In , the US-based nonprofit Zidisha tapped into this trend to offer the first person-to-person microfinance platform to link lenders and borrowers across international borders without intermediaries.

Members can fund loans for as little as a dollar, which the borrowers then use to develop business activities that improve their families' incomes while repaying loans to the members with interest.

Borrowers access the Internet via public cybercafes, donated laptops in village schools, and even smart phones, then create their own profile pages through which they share photos and information about themselves and their businesses. As they repay their loans, borrowers continue to share updates and dialogue with lenders via their profile pages. This direct web-based connection allows members themselves to take on many of the communication and recording tasks traditionally performed by local organizations, bypassing geographic barriers and dramatically reducing the cost of microfinance services to the entrepreneurs.

Internet resources, hardware, and software components are the target of criminal or malicious attempts to gain unauthorized control to cause interruptions, commit fraud, engage in blackmail or access private information. Malicious software used and spread on the Internet includes computer viruses which copy with the help of humans, computer worms which copy themselves automatically, software for denial of service attacks , ransomware , botnets , and spyware that reports on the activity and typing of users.

Usually, these activities constitute cybercrime. Defense theorists have also speculated about the possibilities of cyber warfare using similar methods on a large scale. The vast majority of computer surveillance involves the monitoring of data and traffic on the Internet. Computers communicate over the Internet by breaking up messages emails, images, videos, web pages, files, etc.

Packet Capture Appliance intercepts these packets as they are traveling through the network, in order to examine their contents using other programs.

A packet capture is an information gathering tool, but not an analysis tool. That is it gathers "messages" but it does not analyze them and figure out what they mean. The large amount of data gathered from packet capturing requires surveillance software that filters and reports relevant information, such as the use of certain words or phrases, the access of certain types of web sites, or communicating via email or chat with certain parties.

Some governments, such as those of Burma , Iran , North Korea , the Mainland China , Saudi Arabia and the United Arab Emirates restrict access to content on the Internet within their territories, especially to political and religious content, with domain name and keyword filters. In Norway, Denmark, Finland, and Sweden, major Internet service providers have voluntarily agreed to restrict access to sites listed by authorities.

While this list of forbidden resources is supposed to contain only known child pornography sites, the content of the list is secret. Many free or commercially available software programs, called content-control software are available to users to block offensive websites on individual computers or networks, in order to limit access by children to pornographic material or depiction of violence.

As the Internet is a heterogeneous network, the physical characteristics, including for example the data transfer rates of connections, vary widely. It exhibits emergent phenomena that depend on its large-scale organization. An Internet blackout or outage can be caused by local signalling interruptions. Disruptions of submarine communications cables may cause blackouts or slowdowns to large areas, such as in the submarine cable disruption.

Less-developed countries are more vulnerable due to a small number of high-capacity links. Land cables are also vulnerable, as in when a woman digging for scrap metal severed most connectivity for the nation of Armenia. In , researchers estimated the energy used by the Internet to be between and GW, less than two percent of the energy used by humanity.

This estimate included the energy needed to build, operate, and periodically replace the estimated million laptops, a billion smart phones and million servers worldwide as well as the energy that routers, cell towers, optical switches, Wi-Fi transmitters and cloud storage devices use when transmitting Internet traffic.

This article incorporates text from a free content work. To learn how to add open license text to Wikipedia articles, please see Wikipedia: Adding open license text to Wikipedia. For information on reusing text from Wikipedia , please see the terms of use. From Wikipedia, the free encyclopedia. This article is about the worldwide computer network. For other uses, see Internet disambiguation.

Not to be confused with the World Wide Web. An Opte Project visualization of routing paths through a portion of the Internet. List of countries by number of Internet users and List of countries by Internet connection speeds.

This section needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. September Learn how and when to remove this template message. Global Internet usage and English on the Internet.

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