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A comment on PSA: Some Pixel owners still can't dial 911 during an emergency. Parent comment

Re:PSA: Some Pixel owners still can't dial 911 during an eme... by usr1106 on Saturday September 30, 2023 @08:42AM (#37714882)
At least 2 decades ago when I worked with phones the phone as a list of emergency numbers which could be updated to country-spefic values. Often 000, 112, and 911 were always present.

Once the software notices one of these numbers dialled call handling will go a completely different code path than normal calls.

I have no idea how things work in Android, where you obviously must have VoIP hooks?

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Re:PSA: Some Pixel owners still can't dial 911 during an eme... by joecool1029 on Saturday September 30, 2023 @11:51AM (#37716636)
>I have no idea how things work in Android, where you obviously must have VoIP hooks?

Yes, there's emergency IMS (basically volte/vonr version of SIP) profiles the phone is supposed to register to and all the carriers towers advertise emergency numbers in their signaling.

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