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I found out today that the location header of an HTTP redirect can be a tel:+ URI and phone's will actually ask you whether you want to call that number.




Links can have that as their href and it will also work as you'd expect. It's the telephone equivalent of the more well-known mailto: scheme

Now we should add a ?message= query string to be read out loud in the users voice.

Did you know that you can assign arbitrary programs (protocol handlers) to arbitrary protocols?



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