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more on Cellphone 911 calls failed in big storm: Prudence
From: David Farber <dave () farber net>
Date: Thu, 22 Dec 2005 16:20:22 -0500
Begin forwarded message: From: Ed Biebel <edward () biebel net> Date: December 22, 2005 2:00:18 PM EST To: dave () farber net Subject: RE: [IP] Cellphone 911 calls failed in big storm: Prudence Dave, I have a couple of quick comments on this. I don't disagree with your reader in that it never hurts to have a back-up plan but before goingoutside of the 9-1-1 network, you should have a very good understanding of
how the system works and what you lose going outside of it.1. Not all dispatch centers are equal. In my town, police are dispatched
from two different physical locations (one for local police calls and another for state police calls on the interstates in our area) and basiclife supports ambulances, fire equipment and Advance Life Support teams are dispatched from another location. In the next town local police, fire, BLS ambulances are dispatched in one physical location but Advanced Life Support is dispatched from a second location. (I know this is weird but New Jersey
is a home rule state. <shrug>) The county 9-1-1 call center ties all ofthis together and coordinates dispatching of multiple resources between all
of the physical dispatcher locations.2. 9-1-1 lines take priority. A motor vehicle accident on a busy road can generate 50-100 cell calls to a dispatch center. The standard at our county 9-1-1 center is that 9-1-1 calls must be answered by the third ring. On the first ring, it rings only at call takers desk(s). On rings two and three it rings so every dispatcher in the call center hears it. If no one picks it
up by the third ring, the call automatically transfers to next adjacent county call center. This is to insure that 9-1-1 calls are answered asquickly as possible. The same rule does not apply to 7 digit direct numbers.
The local numbers for dispatchers also deal with non-emergency issues, taking phone reports, questions about court dates, etc. and may not be answered quickly during a crunch. 3. The 9-1-1 dispatch center can also add additional resources. For instance, in our area certain EMS calls trigger the addition of a fire engine to assist with access, lifting, first response, etc. Some calls trigger dispatch to put aeromedical units on standby. Having these resources dispatched early saves time.Again, I'm not saying it does not hurt to have a back-up plan and I can't
directly speak to the other reader's specific location. However, in 12 years of doing EMS and having the direct line numbers of all of thedispatchers, when I've needed help I've always called 9-1-1 (preferably from a landline) as it offers the most failsafe method of insuring quick access
to help. -Ed -----Original Message----- From: David Farber [mailto:dave () farber net] Sent: Thursday, December 22, 2005 12:04 PM To: ip () v2 listbox com Subject: [IP] Cellphone 911 calls failed in big storm: Prudence Begin forwarded message: From: Liz Ditz <ponytrax () batnet com> Date: December 22, 2005 11:19:16 AM EST To: dave () farber net Subject: Re: [IP] Cellphone 911 calls failed in big storm: Prudence Dave, E911 is all well and good, but a prudent person has a backup plan. I live and travel about in Silicon Valley, which has a patchwork of emergency responders. In my car (and more importantly, my teen daughter's car) I keep a list of the direct numbers for emergency dispatch for the various municipalities we travel through. I've also programmed in the direct number for EMS dispatch for the stable where she rides her horse, so if she's in an accident, or witnesses one, help can be summoned quickly. (I learned this the hard way, as 911 dispatch was very slow to arrive to an equestrian accident as the dispatcher was unfamiliar with the location of the stable.) If any of your readers are (for example) mountain bikers, putting on speed-dial the direct EMS dispatch number for the trails they frequent is a good idea. ********** Liz Ditz ponytrax () batnet com blog: http://lizditz.typepad.com Success: fall down seven times, stand up eight. On Dec 22, 2005, at 2:48 AM, David Farber wrote:
Begin forwarded message: From: Monty Solomon <monty () roscom com> Date: December 21, 2005 11:15:26 PM EST To: undisclosed-recipient:; Subject: Cellphone 911 calls failed in big storm / Verizon promises to ferret out why system broke down Cellphone 911 calls failed in big storm Verizon promises to ferret out why system broke down By Douglas Belkin, Globe Staff | December 21, 2005 At the height of a blinding afternoon snowstorm almost two weeks ago, the state's enhanced 911 cellphone system failed, leaving motorists stuck on highways unable to reach police easily. State authorities said the glitch, which appears to have been in the Verizon network that routes all cell 911 calls, lasted as long as 40 minutes. The result: Users who called 911 around 3 p.m. on Dec. 9 heard only a busy signal. ''Something jammed the system. The calls never got through," said Edward M. Merrick Jr., the chairman of the standards committee for the Statewide Emergency Telecommunications Board, which oversees the system. ''It's a serious concern." The breakdown coincided with a Northeaster that barrelled across Massachusetts, icing roads, crippling traffic, and decreasing visibility to just a few feet. Parts of the state received 15 inches of snow and experienced wind gusts of up to 70 miles per hour. The hour before the storm hit, the State Police enhanced 911 center in Framingham answered about 500 calls. But between 3 p.m. and 4 p.m., operators received fewer than 200. It is not clear how many calls failed, but it appears a switch that controls which cell calls enter the 911 system was overwhelmed and shut down. Land-line calls still went through. Merrick was aware that call volume had lessened during the storm, but until he was contacted by the Globe, he attributed it to not having enough operators on duty. It was only after some inquiries, and 10 days after the storm, that Merrick learned the problem may have been on Verizon's end. ... http://www.boston.com/business/technology/articles/2005/12/21/ cellphone_911_calls_failed_in_big_storm/ ------------------------------------- You are subscribed as ponytrax () batnet com To manage your subscription, go to http://v2.listbox.com/member/?listname=ip Archives at: http://www.interesting-people.org/archives/interesting- people/
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