To receive CWS Alerts when your Apple iPhone while Do Not Disturb mode is on:

Register your contact information with CWS. You can do this from your mobile phone or computer. Visit www.cwslaerts.com. Make sure the phone number of the device you will be using is registered in addition to your home landline. 

1. Add the CWS Caller ID phone number to your mobile device.  The CWS will call you from 925-655-0195. 
2. Enable the Emergency Bypass feature for the CWS Contact Card. Depending on the device you use, your steps may be different.
3.  Read this article published by The New York Times, or use the diagram below for iPhones.