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The nationwide roll-out of the 911 system was a difficult endeavor

tedium.co

41–50 of 58 posts

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#41

Earlier quoted context omitted.

999 on a rotary dial phone? Dear heavens.

Hard to dial accidentally, but no much thought involved.

All the 9's was used as you could get a high winds which would cause a 1 to be generated accidently (this was telegraph poles)

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#42
post #24
post #15

Earlier quoted context omitted.

Still better than 0118 999 881 999 119 7253 https://youtube.com/watch?v=ab8GtuPdrUQ

And better than a cell phone, where dialing 911 results in the phone locking, then crashing. I've actually had this happen in an emergency. I can't tell you how dismayed I was that my phone crashed when I called 911.

goodness, what a thought ><. Not too far back we called 911 on a cell phone that we didn't know had the microphone shorted when it had gotten wet earlier in the day but otherwise was completely operational. Took several minutes to figure out what was going on. I think we wound up texting a friend that we'd call them and to verify they could hear us or not. We wound up having a headset handy luckily enough.

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#43
post #24
post #15

Earlier quoted context omitted.

Still better than 0118 999 881 999 119 7253 https://youtube.com/watch?v=ab8GtuPdrUQ

And better than a cell phone, where dialing 911 results in the phone locking, then crashing. I've actually had this happen in an emergency. I can't tell you how dismayed I was that my phone crashed when I called 911.

were you running cyanogenmod? i remember one version of that ROM having e911 issues

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#44
There's some interesting technical history behind some of the emergency number choices:

999 in the UK (from 1937) was chosen because public payphone could be easily modified to make it a free call.

111 in New Zealand (from 1958) was chosen because the system was implemented using British Post Office equipment that already supported 999. But New Zealand phones pulsed in reverse so 111 on a New Zealand phone produced the same pulse as 999 on a British phone.

000 in Australia (from 1961) was chosen because 0 was already used for trunk access. On an automated rural exchange, 0 would connect you to a main centre. In remote communities it was 00. This meant that dialing 000 through an existing remote exchange would at least connect you to an operator in a main centre.

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#45
post #13

Earlier quoted context omitted.

I think you're being a bit overdramatic, or there's a difference between your configuration and mine (FireFox Desktop). I find it quite readable, pleasantly so even.

The color of the body text is (102,102,102). That cuts your contrast just about in half.

Which is awesome if you have a monitor with 1000 nits or more, as (0,0,0) to (255,255,255) has a blinding contrast on them.

The basic issue is that CSS colors are defined in terms of relative brightness of the monitor, and not within of a proper colorspace. Most browsers assume sRGB, but many users don’t even have that.

In sRGB, a contrast of (102,102,102) to (255,255,255) is a very pleasant, and perfectly readable contrast.

But many users are on shitty 6-bit color depth 100 nits or less displays.

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#46
post #18
post #17

Earlier quoted context omitted.

> Most responders don't even have the ability to map a long/lat. So at this point, the accuracy is moot. This is genuinely surprising to me. The operators having trouble makes sense, because phones are something of a rolling disaster, but responders aren't using GPSes that can do this?

I'm sorry, I should clarify. Their are many layers of 'responders', their maybe just one, your call was routed to the local police. It may have been routed to call center in that area, who in turn broker the call, etc. Imagine a situation where your traveling down an interstate out in the boonies. Theirs a wreck. You call 911 from your cell. The responder will receive an approximation of your location, likely the clo…

> The responder will receive an approximation of your location, likely the closet cell tower

Are you saying the GPS they mandated in cell phones ten years ago, ostensibly just for this purpose, doesn't actually do its job most of the time?

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#47
post #43
post #24

Earlier quoted context omitted.

And better than a cell phone, where dialing 911 results in the phone locking, then crashing. I've actually had this happen in an emergency. I can't tell you how dismayed I was that my phone crashed when I called 911.

were you running cyanogenmod? i remember one version of that ROM having e911 issues

No. It was a basically stock Verizon edition of Android.

After that experience I switched to iPhone. However, since then, I've experienced the iPhone iCloud Phone.app crash, which also denied me 911 service (although fortunately I noticed the problem and resolved it before needing 911.)

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#48
post #5

An example of the drawbacks of decentralization - meanwhile in Sweden, 98% of phones were already covered by the "90 000" emergency number by 1965.

Don't we have the same issue in software today..

Many projects have their own snowflake build systems, web APIs have custom authentication schemes, multiple federated login systems...

Don't get me wrong we see a lot of consolidation, the world is getting better :)

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#49

I once worked at a bourgeoning hosting provider who had one of the higher floors in a building that was condemned, but couldn't be torn down because it was home to a phone switching room that had been a part of the original 911, and the designers of technology then simply did not even imagine their systems being EOLed, so it turns out, no living or dead being knows how. I'm curious to know if that's still standing. T…

Those kind of buildings are all around the country and serve various purposes - some of which specifically manage 911 calls. I can't imagine ever decommissioning one. Sometimes even gaining access takes something just shy of an act of god. While AT&T has re-consolidated in a major way, there are still a lot of external concerns to deal with.

Somebody would have to be very motivated to push through turning an interconnection point like that off. The politics involved in doing so would be extraordinary - even if there was common agreement from the start that it was time to let it go. I don't even know that you really could initiate a project like that from within a Telco.

It is a bit surprising that it was common knowledge that part of 911 ran out of there. While it's not "secret" information, the purpose and location of most similar properties are typically not openly advertised. Most people don't even know where their local CO actually is.

Re: The nationwide roll-out of the 911 system was a difficult endeavor

#50
post #45
post #13

Earlier quoted context omitted.

The color of the body text is (102,102,102). That cuts your contrast just about in half.

Which is awesome if you have a monitor with 1000 nits or more, as (0,0,0) to (255,255,255) has a blinding contrast on them. The basic issue is that CSS colors are defined in terms of relative brightness of the monitor, and not within of a proper colorspace. Most browsers assume sRGB, but many users don’t even have that. In sRGB, a contrast of (102,102,102) to (255,255,255) is a very pleasant, and perfectly readable c…

So you intentionally have your monitor set uncomfortably bright, but it's everyone else's fault? And the solution is for everyone else to spend money to make your site look better? How about no.
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