Showing posts with label 911. Show all posts
Showing posts with label 911. Show all posts
Friday, November 2, 2007
Wireless 911 Stays Up, Networks Do Not
For all the effort service providers put into 911 emergency calling service and systems, the simple fact is that both wired and wireline 911 systems will crash if there is a big enough event. The 911 system can even stay up, but might not be usable, simply because callers can't get access to the network. Everybody knows that, and the recent San Jose, Calif. earthquake simply proved it.
Thousands of mobile phone users were unable to connect calls in the hour following the 5.6 earthquake that struck the Bay Area shortly after 8 p.m. Oct 30. The reason is simple enough: networks always are under-provisioned. They are designed for a "normal" peak demand, and a large unexpected demand will simply swamp any network.
Wireless carriers said traffic spiked up to 10 times higher than normal, primarily with calls to family and friends, news outlets and emergency services.
The flood of calls also tied up at&t's landline phone service.
In a strict sense, the wireless 911 network continued to function. The problem is simply that when the access network is really congested enough that call attempts are blocked, any given call--to 911 or to any other number--simply can't be completed.
The solution? Use text messaging for non-911 calls. It doesn't tax the network as much.
Labels:
911,
earthquake
Gary Kim has been a digital infra analyst and journalist for more than 30 years, covering the business impact of technology, pre- and post-internet. He sees a similar evolution coming with AI. General-purpose technologies do not come along very often, but when they do, they change life, economies and industries.
Subscribe to:
Posts (Atom)
Consumer Feedback on Smartphone AI Isn't That Helpful
It is a truism that consumers cannot envision what they never have seen, so perhaps it is not too surprising that artificial intelligence sm...
-
We have all repeatedly seen comparisons of equity value of hyperscale app providers compared to the value of connectivity providers, which s...
-
It really is surprising how often a Pareto distribution--the “80/20 rule--appears in business life, or in life, generally. Basically, the...
-
Is there a relationship between screen size and data consumption? One might think the answer clearly is “yes,” based on the difference bet...