Verizon Drops 10,000 911 Calls During Blizzard
mschaffer noted a Bloomberg piece saying
"US regulators said Verizon Communications Inc.'s networks may have dropped a 'truly alarming' number of wireless emergency calls during a snow storm last month, and asked the carrier to investigate." The article says 10,000 calls failed to connect during one blizzard. Can't wait to see what all those AT&T migrators think.
911, Can you hear me now?
Cool! Amazing Toys.
Seriously, 10,000 911 calls is a huge number, even if 911 is being abused there were no doubt a lot of calls from people trapped in their homes (for people who have ditched their landlines) or cars. Imagine an elderly person in their home when the heat goes out, in those cold temperatures that can become life threatening very quickly.
Things like this are one of the main reasons we pay ~$25/mo for a land line despite having 5 active cell phones in the house on 2 separate networks (not to mention a few inactive ones that can still call 911) I know that if the excrement hits the air circulator that I will have more options to reach people than finicky mobile networks.
I would like to see At&t's dropped call number for the same period.
Can the 911 processing centers handle that many calls? Anyone have stats on how many calls they normally process? I'm not sure where to look for that data...
15th Post! I would have had first post, but my posts kept being dropped.
Today's top story - adverse weather conditions can negatively affect cell phone reception. In other news, high winds can knock down telephone poles and prevent phone calls.
Clearly we need some sort of communication method that is immune to weather, but what could it possibly be?
Can you Save me now?
Phone service in USA sucks harder than a Thai hooker.
Best service in blizzards!*
*study conducted in Southern California.
Not all dropped calls are created equally... Some areas are just not designed to get cell coverage. It almost makes me wonder if some one is needing to use 911 if they are often in that area. Also what is the ratio of dropped calls to calls made? 10,000 out of 10,000 would be an alarming rate but what about 10,000 out of 1,000,000. How many dropped calls are customer induced? This article tells us nothing...
OK...here come all the anecdotal stories about this one friend who had an uncle who's girlfriend's cousin had a 911 call dropped by AT&T, so they're not only bad, they're WORSE!
Well... we have folks who can't figure out the whole milk and bread thing like everyone else seems to be good at. Apparently they are too stupid to live. So it's probably best they starve.
This was a Blizzard of historic magnitude. People should take the warnings they were given and be prepared for the worst in anycase. Cell phone or no cell phone!
It wasn't Verizon Wireless that dropped the calls, it was Verizon Landline that lost 14 CAMA trunks used by ALL wireless carriers. Also, the calls weren't dropped, they got busy signals. Bad, but different and comparing Verizon Wireless to AT&T Wireless are irrelevant to this story.
AT&T does that on almost every clear day, in the Northeast, between 12 p.m. and 5 p.m. EST.
TFA explains first that 10000 calls were dropped but the investigation showed that it was 10000 calls failing to connect. Isn't this two completely different situations? The first being the customer connecting then being disconnected and the second never actually connecting. I could see someone failing to connect at all then attempt to dial multiple times in quick succession...
10,000,911 is a lot of calls to drop, but the question is out of how many?
My impression listening to this boil up in the local media, is that the issue was not just dropped cellphone calls on one cellphone carrier, but rather the routing and concentration of 911 calls into several of the 911 call centers. Essentially the 911 call centers "phone company" is Verizon and some SNAFU between Verizon and the call center was resulting in dropped calls. This is not any new technology problem, going back to the creation of 911 the original PBX's simply melted under any intermittent high call volume.
How many calls of this nature did AT&T drop? T-Mobile? (insert other wireless carrier here)? Is it exclusive to Verizon?
Of these 10,000 calls dropped, how many of them were repeat calls by the same phone? Was it just 100 people that called 100 times before they connected, or 10,000 people only getting one drop each? Or was it just one really bored guy that called in 10,000 times and just wasn't getting a signal?
The article states this happened in Washington's suburbs, was a tower KOed, leaving many without reception, and in turn they all called 911 about it?
I could go on like this for awhile, the point is that this is not enough data to draw any kind of conclusion.
What do I know, I'm just an idiot, right?
After the Loma Prieta earthquake hit San Francisco, I couldn't make any cell phone calls at all. Why? Everybody in the country was calling into the area resulting in the land line network taking over 2 minutes to put up a dial tone. But the cellular providers timed calls out after 60 seconds with no dial tone!
I've abandoned my search for truth; now I'm just looking for some useful delusions.
I wonder why they bothered putting 10 000 911. "Roughly 10 million" probably would have been fine.
"Always forgive your enemies; nothing annoys them so much." - Oscar Wilde
The biggest problem is not that the network went down, but rather Verizon did not realize it was down. Other news stories with more facts listed mention that upon a Sheriff alerting them, they had the network back up in 15 minutes.
Let's say the power goes out... and you need to make a phone call. How many people today have phones that do not require power (or rather take their power from the phone line)?
If you have a cordless phone you need power, not for the handset but for the base. When the time comes you'll wish you kept your $10 "Walmart Special".
The weren't connected. And it wasn't a problem of Verizon Wireless, but rather Verizon (landline). Read the FCC letter for more detail. http://www.fcc.gov/Daily_Releases/Daily_Business/2011/db0218/DA-11-328A1.pdf
http://www.fcc.gov/Daily_Releases/Daily_Business/2011/db0218/DA-11-328A1.pdf
Kathleen M. Grub
Senior Vice President
Public Affairs, Policy & Communications
Verizon Communications
1300 I St. NW, Room 400W
Washington, DC USA 20005
Re: Failed 9-1-1 Calls During January 26, 2011 Snowstorm
Dear Ms. Grub,
The FCC has received reports that during the snowstorm that hit the Washington D.C. region on January 26, 2011, approximately 8,300 wireless
9-1-1 calls to the Montgomery County Public Safety Answering Point (PSAP), routed over the Verizon network, were not connected, and an additional 1,700
wireless calls to the Prince George's County PSAP were not connected. I know that you will agree that any 9-1-1 call which is not connected can have serious
consequences, but the large number of missed 9-1-1 calls on January 26 is truly alarming. I therefore request that Verizon provide an explanation of the causes
of this and similar failures, provide Verizon's assessment of the possibility of occurrence in other locations and describe what actions Verizon is taking to
prevent recurrence of these problems.
Here is a synopsis of what we understand so far. Through our initial discussions with various parties, including representatives of Verizon, we have
learned that the Montgomery County PSAP has fourteen trunks that handle wireless calls, seven each from the Rockville and Hyattsville Selective Routers.
The trunks from these Selective Routers to the PSAPs are maintained by Verizon (not Verizon Wireless), and there are separate trunks for wireline, wireless and
VoIP calls. At approximately 5:15 p.m. on January 26, Verizon's system automatically took one of the wireless 9-1-1 trunks out of service. It is our
understanding that this was not an overload. We understand that it is normal in large-scale emergencies for the call volume to exceed the trunk capacity, in
which case calls will be blocked until another trunk opens up. In this instance, however, the Verizon system took each of the fourteen trunks handling wireless
calls out of service sequentially so that they could not receive any more calls. By 8:45 p.m., the problem had cascaded to the other thirteen 9-1-1 trunks handling
wireless calls, so that all of the trunks handling wireless 9-1-1 traffic in Montgomery County were taken out of service by the system.
These trunks have working alarms, but Verizon did not notify the PSAPs of the failure after the alarms went off. The Montgomery County PSAP
recognized the problem just prior to 11:00 p.m. and notified Verizon. By 11:15 p.m., Verizon had placed all the trunks back into service.
Similarly, eight of the ten trunks that serve wireless calls for the Prince George's County PSAP were taken out of service automatically by Verizon on
January 26 by approximately 8:30 p.m. A ninth trunk was taken out shortly thereafter. Four were restored by 10:30 p.m.; all trunks were finally restored by
approximately 11:00 p.m.
It is not clear what caused these individual trunks to be taken out of service. Your experts have postulated that the increased call volume resulting
from the snowstorm created a timing problem on the trunks which caused them to be automatically taken out of service. However, the Private Branch Exchange
(PBX) in the Montgomery County PSAP is a relatively new CS1000E, which has the speed and capacity to handle the number of calls that were being routed.
The Prince George's County PSAP's PBX is older, but since the PBX has fewer trunks connected to it, the PBX should be able handle the call volume. The slow
response of the PBX's does not appear to be the cause of the failures.
I would note that the events of January 26 are not unique and that other similar 9-1-1 outages have occurred recently in the region. On December 17th,
2010, the Prince George's County PSAP and on July 25, 2010, the Montgomery County PSAP exper
an interesting investigation...it would be neat to see from a technical standpoint what happened, what broke down, what worked, and how the cellular network can be protected and enhanced in the future to make sure this doesnt happen. could open source technology have maybe provided a better solution too?
the thing to remember is this is news for nerds, and stuff that matters. so the summary can be completely disregarded after its title as the author flagrantly touted a bit of bias at the end that makes the story just a smear piece at best. to think that any telecommunications network is inherently superior to another without at least a technical summary of its legitimate capabilities and systems is ludicrous.
Good people go to bed earlier.
Can't wait to see what all those AT&T migrators think.
I wonder why all those calls went through the Verizon network. Could it be that AT&T doesn't have reliable service in that area to begin with?
Another article (http://www.gazette.net/stories/02162011/montnew184543_32539.php) shows that this has been an ongoing problem in a three-county area---perhaps even nationwide.
Verizon acknowledged the problem and are at fault for not notifying the 911 center that there was a problem. (In fact, the 911 center had to call Verizon to alert them of the problem.) Similar problems nearby occurred on Jan. 31, when cell phone calls could not be received between 9:36 p.m. and 2 a.m., an on Dec. 17, when cell phone callers could not reach 911 dispatchers for seven hours.
Verizon designed, installed, and operates these systems. Who's fault do you think it is?
I've actually spotted an AT&T fanboi!
For your security, this post has been encrypted with ROT-13, twice.
that it's still better than AT&T. If I drop a call, I can retry. If I got no bars, I can't try at all.
Oliver's law of assumed responsibility: If you're seen fixing it, you will be blamed for breaking it.
The land phone system consists of a cable hooked up to a microphone and a speaker. The dialing tones are a hack a layer above it, the old pulse system worked by cutting the circuit in rapid succession.
A cellphone is a fully functional computer with a power source, that has to connect to a network of computers and transmit data that needs to be decoded by complex software in real time over radio.
Would your really trust a 911 call to a cellphone? this has nothing to do with "Verizon", whatever that is, people need to pick up the phone and dial 911 on their landline if they have an emergency.
--
Stay tuned for some shock and awe coming right up after this messages!
So there were 10000 unconnected calls; so what. When someone dials 911 and does not get through they try again until they do. For example, if someone tried to get through to 911 and it took 11 tries that would account for 10 unconnected calls. They still got through; it just took a little longer. What if the issue was 10000 people who had to try twice? A temperature emergency is a bit different than a fire. In most cases a five or ten minute delay in responding to weather emergency will not change the situation.
Comment removed based on user account deletion
number of drivers on the road in horrible weather conditions. It was the worst traffic we've seen in this area since 9/11, and this is a place that has terrible traffic problems on a good day. There were abandoned cars, 10 hour commutes, closed roads, accidents everywhere. Day care centers had to stay open all night because parents could not get out of standstill traffic to pick up their kids. Parking lots were full of people sleeping in their cars because they couldn't get home. The dropped calls is not the issue as emergency vehicles could not get anywhere anyway. It was a total fail in our nation's capital.
Qwest (now some other company) has horrible service. HOWEVER, it is a landline, in which you have a connection that is pretty solid IFF everything is buried. Perhaps most importantly, is that the RBOCs will not overallocate the calls on the backbones. Finally, they prioritize calls over net. This contrasts with Cable esp. Comcast. During an large crisis, you will NOT get through with either comcast, most cables, and absolutely NONE of the wireless. So, your best bet is to have cable for the network, an RBOC for a cheap cheap landline (as in skip the perks), and of course one of the wireless.
I prefer the "u" in honour as it seems to be missing these days.
In the west concept of heated winters is accepted.
But remember, there are still lots of towns in other parts of the world, for example, Himalayan India, where winter temp falls to -25 degree C. One town saw a low of -50 degree C.
those places have very little electric supply in winters, and because its a cold desert, firewood is scarce. So they make do with blankets.
In those areas there are some nomads who live outdoors in this weather, digging a pit, setting up a tent and using little firewood.
So you can survive -10 to -20 just with blankets very well
My Aurora : http://www.youtube.com/watch?v=o91ZsGwJYyg
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The calls were dropped because the trunks (over which calls flow) were disabled in software. Nothing to do with "rain fade" or some abstract wireless issue.
Interesting. Completely unacceptable. Not at all clear from the Bloomsberg article. I wish posters would link to something which had a link back to the the original article. This was a big hassle to find.
Looking at it, something is deeply wrong here. Clearly the operations staff completely missed what should be a big bunch of serious alarms over a period of about five hours!!! Even more, Verizon's network people don't seem to be able to give a clear answer about what went wrong (though at a guess the measured BER on the trunks went up because they were properly in use for the first time - which shows incomplete testing, long term ignoring alarms and a switch system which measures BER badly). If this were in another country and the FCC wasn't so afraid of the operators then I guess that they would be at serious risk of losing their operator license. What's sad is that we used to hear of the US as the place where you couldn't have more than a five minute outage without a government investigation.
=~ s,(.*),<sarcasm>$1</sarcasm>,g if any_point_you_wish();
All those ATT customers that must have froze to death trying to get a signal, trying to establish the call in the first place...