[EAS] Resolved- Nationwide AT&T Mobility 9-1-1 outage

[Sean Donelan]

On Thu, 9 Mar 2017, Botterell, Arthur at CalOES wrote:
> Yes, and the additional uncertainty about how different broadcasters 
> may treat various codes creates a further incentive to stick with a few 
> well-known ones whose behavior can be foreseen with some confidence. 
> Again, it's become vary messy.

AT&T Mobility says the 9-1-1 outage is resolved.

The National Weather Service offices were sending alert messages using the 
TOE (911 Telephone Outage Emergency) code as Non-Weather Emergency 
Messages on behalf of local emergency management agencies.

CEM (Civil Emergency Message) is generic, neutral sounding, and universal 
across public alerting systems (Weather Radio SAME, EAS, WEA) for the last 
20 years.  If emergency managers can't figure out which code to use, CEM 
is usually the generic code.  Using CEM also avoids "scary" text crawls on 
legacy EAS equipment when the audio or IPAWS message is missing.

I received the message from ArlingtonAlert (SMS subscription based 
alerting) at 11pm, after the AT&T outage was resolved.  I don't know when 
Arlington sent it, i.e. was it delayed.