Reverse 911 for Cell Phone San Diego CA
The reverse 911 Emergency Notification system does not call cell phones or VOIP phones. Here is the link to the Office of Homeland Security for Reverse 911 listing. This service is currently for City of San Diego residences and businesses.
There is also a website for County of San Diego residents to register their Cell phones and VOIP phones for R911 calls:
http://www.alertsandiego.org
Gary