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2. Callback (telecommunications) - Wikipedia

   en.wikipedia.org/wiki/Callback_(telecommunications)

   For example, if a customer from Spain is calling a phone number in Australia, and it costs 8 cents per minute to phone Spain from the US (the callback, which is an incoming call) and 20 cents per minute to phone Australia from the US (the destination call, which is an outgoing call), then the caller will pay a total of 28 US cents a minute ...

3. Ringback number - Wikipedia

   en.wikipedia.org/wiki/Ringback_number

   A ringback number is a telephone number for a telephone line that automatically calls the line that the call was placed from, after the caller has hung up. The typical use of this facility is by telephone company technicians for testing a new installation or for trouble-shooting.

4. This is why you should never call back an unknown number - AOL

   www.aol.com/article/lifestyle/2019/05/03/this-is...

   So if your bank leaves a voicemail, don’t just call back the number from the missed call. Find the official number online and dial that, suggests Levin. “Never trust—always verify,” he says.

5. Last-call return - Wikipedia

   en.wikipedia.org/wiki/Last-call_return

   Call again, a form of automatic ring back, allows a caller, on reaching a busy signal, to hang up, dial a special code, and be called back automatically when the called number is no longer busy, usually with a limit of 30 minutes. Call return allows a customer to dial a code that identifies the last incoming call. On some types of central ...

6. This is what you are doing wrong when scammers call - AOL

   www.aol.com/news/doing-wrong-scammers-call...

   Use the "Hang up, look up, and call back" method for verification: ... then you should end the call and either go on with your day or look up the company and call it back on its official number ...

7. Automatic number announcement circuit - Wikipedia

   en.wikipedia.org/wiki/Automatic_number...

   Automatic number announcement systems are based on automatic number identification. They are intended for use by phone company technicians, the ANAC system bypasses customer features, such as unlisted numbers, caller ID blocking, and outgoing call blocking. Installers of multi-line business services where outgoing calls from all lines display ...