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Top> Internet / Help / Caller Line Identification
Most users of the Internet will have experienced what is called Spam. Spam is the term used on the Internet for unwanted email messages that most users receive from time to time. These message are usually trying to sell something in one way or another and many users just ignore them or delete them. To many people though these messages are a source of great annoyance and cause passions to run very high because if not kept in check, then Spam email messages could swamp your mailbox with hundreds of unwanted messages each day. Imagine if this happened with the junk mail you receive through the normal postal system. You would have a pile of mail a foot deep at your front door each morning and you would be straight on the phone to the Post Office to find out how you could stop it, not because it was costing you anything, but because it was very inconvenient and time consuming to sort through. The difference between mail that is delivered through your letterbox and mail you receive over the Internet is that you pay for mail delivered to your computer through your telephone bill because it takes time to download these unwanted messages and the meter is running. Another big difference is that email sent to hundreds of thousands of people via the Internet can be done relatively cheaply and therefore attracts the attention of many unscrupulous individuals. One of the best methods for deterring Spammers is to insist that our customer's phone line displays it's CLI (calling line identification) when accessing our Internet service. This means that we can easily determine the telephone number of the person or company that is abusing our network and take the appropriate action to stop this happening again in the future. Most Internet Service Providers have either already implemented this policy or are in the process of implementing the use of CLI for the sending of email and the posting to news services. If you have CLI enabled then you just carry on as normal. If you don't have CLI enabled you can do one of two things. If you don't know if you have CLI enabled or not you could call your telephone provider and ask them. An alternative method would be to call a friend, and then get them to dial 1471 and tell you what message they heard - if they heard your telephone number being read out, then you've got CLI enabled, if they don't they you've probably got it disabled. |
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