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emergency callemergency callPosted Jul 1, 2012 19:29 UTC (Sun) by Cyberax (✭ supporter ✭, #52523)In reply to: emergency call by tialaramex Parent article: Google plans to ease the Android update problem (The H)
>That is, you can "just" take a phone you're testing out to the real world, dial 112 and then apologise when you get through, but there's no way to test without wasting critical resources in this way.
That's not true. You can schedule a test call with your local emergency center. People developing Cyanogen Mod for Vibrant Galaxy S had to do this because of broken 911 functionality.
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emergency call Posted Jul 3, 2012 10:25 UTC (Tue) by rich0 (guest, #55509) [Link]
Yup, from what I read it isn't uncommon for PBX installers and such to plan test calls with 911. The 911 center understand that such testing is important for public safety and usually provides some way to handle it.
I'd think that a carrier would be able to implement such testing without even bothering the 911 center. Presumably they could redirect the call from a specific device/tower/etc to someplace else. They could even stick the phone in a Faraday cage with a microcell to test it.
emergency call Posted Jul 4, 2012 0:19 UTC (Wed) by Cyberax (✭ supporter ✭, #52523) [Link]
That's more complex than you think. 911 calls are not processed like normal calls.
For example, 911 calls can automatically transmit GPS position and other information.
emergency call Posted Jul 11, 2012 8:34 UTC (Wed) by tialaramex (subscriber, #21167) [Link]
I'm glad to know that arrangements to do real tests for emergency phone calls exist in the US at least, thanks.
emergency call Posted Jul 13, 2012 0:46 UTC (Fri) by JanC_ (guest, #34940) [Link]
All calls can (and sometimes do) automatically transmit GPS information and such, that's not specific to 911 calls. (But I suppose you mean you would want to actually test that functionality for 911.)
emergency call Posted Jul 13, 2012 1:01 UTC (Fri) by Fowl (subscriber, #65667) [Link] That seems unlikely, as spinning up the GPS chip uses a substantial amount of power. Unless you mean "cell tower triangulation data" instead of "GPS"?
emergency call Posted Jul 13, 2012 9:26 UTC (Fri) by Cyberax (✭ supporter ✭, #52523) [Link]
No. That means "GPS".
In Samsung Galaxy S, for example, there's a special protocol between radio interface layer and GPS daemon.
I don't really think people care much about shortened talk time due to GPS when calling 911.
emergency call Posted Jul 13, 2012 18:58 UTC (Fri) by Fowl (subscriber, #65667) [Link] I was referring to nonemergency calls.
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