Lesson plan
Automatic ring back
Automatic ring back is a service offered by phone companies. On making a telephone call to a number that is engaged, automatic ring back is a service provided by the telephone company whereby, when the called number becomes available, the caller is rung back, usually with a distinctive "ring back" ring. When the phone is picked up, it calls the previously engaged number. The service is typically invoked by keying a number on hearing the engaged tone. In the UK the service is also known as Ringback. In the United States the service is often called Auto Redial. In the United States Army on post wide communications networks, this is referred to as Callback or Automatic Callback.
Article summary
Automatic ring back is a service offered by phone companies. On making a telephone call to a number that is engaged, automatic ring back is a service provided by the telephone company whereby, when the called number becomes available, the caller is rung back, usually with a distinctive "ring back" ring. When the phone is picked up, it calls the previously engaged number. The service is typically invoked by keying a number on hearing the engaged tone. In the UK the service is also known as Ringback. In the United States the service is often called Auto Redial. In the United States Army on post wide communications networks, this is referred to as Callback or Automatic Callback.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.