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Emergency Alerts

How to set up CMAS on your device

Wireless Emergency Alerts

The Commercial Mobile Alert System (CMAS) is a personalized emergency alert system designed to alert people of nearby threats or emergencies. Additional information about CMAS is available on the FEMA website:

The service was designed so that it will not be delayed or bogged down by the kind of high call-traffic scenarios that often happen in an emergency. There will be three kinds of messages that go out over the service:
1. Messages from the President (national defense)
2. Imminent threats to safety or life (severe weather or public safety emergency)
3. Amber Alerts (child abduction)
Note: Subscribers may opt out of all alerts except those from the President.

Only certain Nex-Tech Wireless devices are currently CMAS-enabled. Below is the current list of phones with this capability:

  • Alcatel Shockwave
  • BlackBerry Bold 9930 (software version 7.1 or higher)
  • BlackBerry Torch 9850 (software version 7.1 or higher)
  • BlackBerry Curve 9350 (software version 7.1 or higher)
  • HTC One V
  • HTC Desire 601
  • iPhones (all models)
  • LG Optimus Plus AS695
  • LG Optimus Select AS730
  • LG Converse AN272
  • LG F7 AS780
  • LG G3
  • LG AN170 Fluid II
  • Motorola Milestone X
  • Motorola Milestone X2
  • Motorola Milestone Plus
  • Motorola Milestone 3
  • Motorola Razr Maxx
  • Motorola Moto X
  • Motorola X 2nd Generation
  • Samsung R390 Freeform 4
  • Samsung R480 Freeform 5
  • Samsung R270 Chrono 2
  • Samsung Galaxy S3
  • Samsung Galaxy S5
  • Sonim XP3405
  • Sonim XP4400

When CMAS alerts are received on your CMAS-enabled device, you will be notified in the following ways:
1. The device will transmit a unique tone
2. The device will vibrate with a unique cadence
3. The device will display the alert without user interaction, consistent with how the device typically displays incoming phone calls and SMS messages.< How to opt out of CMAS alerts
Note: You are able to opt out of all alerts, except presidential alerts.

Android Devices:
1. In the application tray tap the Emergency Alerts icon.
2. In the EMERGENCY ALERTS inbox, press the MENU key and tap SETTINGS.
3. Tap RECEIVE ALERTS Uncheck those you do not want to receive. You may opt out of receiving Extreme, Severe and Amber Alerts. Presidential Alerts cannot be disabled.

BlackBerry Devices:
1. On the home screen, select the Emergency Alert Messages icon.
2. Press the MENU button and select OPTIONS.
3. Uncheck those you do not want to receive. You may opt out of receiving Extreme, Severe and Amber Alerts. Presidential Alerts cannot be disabled.

1. Select the Setting icon.
2. Select Notifications. Scroll down to Government Alerts.
3. You can then toggle On or Off the alerts you wish to receive.

Other Notes:
CMAS alerts will not be received while on an active call.
There are currently no language translations for CMAS alerts.
Occasionally a duplicate of a previously received alert may be presented again.
You are unable to forward or reply to a CMAS alert message.