I’ll add on here, so typical cell phone triangulation is done using the 3 closest towers to get a “general” location. Phones now have a more information they can provide which 911 systems can take advantage of, pedometer, wifi hotspots, gps, things like that. Which make services like Rapid S.O.S work
For home numbers the carriers provide 911 with that information via ani,ali information. Where as with cell phones a clearing house is involved. I would give the name but it changes often.
With voip providers it’s whatever information you put in with the company (think vonage,skype) so keep that up to date.
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