[sbe-eas] CMAS Webpages for all 4 big carriers

Ken Evans evansken.delmarva47 at verizon.net
Sun Feb 26 21:35:27 EST 2012



I have not seen anything recently about the CMAS phones or Wireless
Emergency Alerts. I have a Droid Bionic by Verizon and I noticed a new
app on my phone Friday called "Emergency Alerts". It was not there a few
months back when CMAS was the hot topic. It is definitely the CMAS
level alerting app Verizon will use for my phone. In the settings it
allow choices for Extreme Alerts, Severe Alerts, and Amber Alerts.
Presidential alerts are mandatory. No individual choices of which local
events can be made, but you can turnoff the three local settings if you
want, just not the Presidential messages. And It seems to have appeared
on my phone by itself. So I figure they added it during the last
Software update that Verizon did about two weeks ago.

But it is not mentioned on the Verizon web site that Gary Timm listed
below.

What gets me about CMAS is that it is not opt in, it is being set up as
opt out. At least for the local events you can opt out. And the
limitations of CMAS have made Emergency Managers locally not want to use
it. One Emergency Manager at the Maryland SECC meeting recently noted
that because it can not selectively reach only the people in the
effected area, that he worries it will confuse the issues more and
create unnecessary panic. I.E.: Evacuate an entire county when only a
small area of that county was endangered. If this warning system is
only based on SAME technology then this would be true unless county
subdivisions numbers in the FIPS codes are used. But would the CMAS
warning include the subdivision number and show the specific warned area?

The NWS uses the polygons to show the locations of events on their web
pages. But can CMAS use GPS to target the phone users within the
polygon? Or does the whole county get it? Or anyone on the local cell
tower? We had a Tornado warning here late Friday afternoon. Narrowest
warning band I ever saw the NWS do locally on their web site. I did
not get an alert via CMAS (I suspect not active until CAP becomes
effective, I did get the alert from my stations EMnet receiver on my
phone). I was just outside the warned area at the time, would I have
been warned? Would the entire county have been warned? Or just those
within the polygon zone?

Anyway, I just wanted to note the concern about the limitations of CMAS
as a warning device. And I am glad to see it was something that could
be added to my phone's abilities.


Ken Evans


On 12/24/2011 12:29 AM, Gary Timm wrote:

> I did some searches. Here are the web pages for CMAS for all four

> Tier 1 carriers... and, the WEA logo!!

> Gary Timm

> AT&T:

> http://www.att.com/gen/public-affairs?pid=20107

> Verizon (shows the WEA logo):

> http://support.verizonwireless.com/clc/faqs/Wireless%20Service/emergency_alerts_faq.html

> Sprint (cool grahic explaining how CMAS works and has links in left

> nav bar to more info):

> http://community.sprint.com/baw/community/buzzaboutwireless/services/messaging/wireless_emergency_alerts_-_cmas?view=overview

> T-Mobile (shows the WEA logo and enabled devices):

> http://www.t-mobile.com/Company/CompanyInfo.aspx?tp=Abt_Tab_CompanySafety&tsp=Abt_Sub_WirelessEmergencyAlerts

> <http://www.t-mobile.com/Company/CompanyInfo.aspx?tp=Abt_Tab_CompanySafety&tsp=Abt_Sub_WirelessEmergencyAlerts>

> The WEA Logo:

>

>

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