Re:Answering Every Question You Have About IMEI Numbers
by amatecha on Wednesday May 01, 2024 @01:52AM
(#40219960)
A lot of telcos used to have phone numbers you could call that would just say the number you're calling from (like with a computerized voice). I forget what this was called, but it was talked about in phreaking community or so on. Not sure if these "caller identifier" phone numbers are still around today though.
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Re:Answering Every Question You Have About IMEI Numbers
by miki123211 on Wednesday May 01, 2024 @05:25AM
(#40221123)
They're easier to make than ever, all you need is Twillio and a bit of Python code. There are quite a few in the US alone, both provided by carriers as well as enthusiasts and other companies in the industry.
Re:Answering Every Question You Have About IMEI Numbers
by bsagdiyev on Wednesday May 01, 2024 @07:36AM
(#40221909)
800-444-4444 still works. Even starts with "thank you for calling MCI"
Re:Answering Every Question You Have About IMEI Numbers
by razakel on Wednesday May 01, 2024 @08:14AM
(#40222147)
They're called ANACs - automatic number announcement circuits.
Re:Answering Every Question You Have About IMEI Numbers
by amatecha on Wednesday May 01, 2024 @03:30PM
(#40228172)
Ah yeah that's right, thanks!
Re:Answering Every Question You Have About IMEI Numbers
by BayesianDice on Wednesday May 01, 2024 @08:21AM
(#40222189)
BT in the UK has 17070 which tells you the number and lets you do tests like the "quiet line test". Handy when working out what was going on when I moved into a property with no live phone service (so no normal outgoing calls), lots of phone extension sockets, and (I discovered) two landlines coming in...