The CDC Preparedness Cooperative Agreement requires that health departments have communications redundancy so that should one communications system fail to function, there are other technologies that can be implemented to maintain communications among emergency responders.  Technologies the Public Health Emergency Preparedness Program have implemented include:

Landline/Celluar/SmartPhones

Two-Way Radio (UHF/VHF/800mhz)

Satellite Telephone

Amateur (HAM) Radio

Dynamic Message Signs

Broadcast Fax

Video Conferencing

Text messages/Texting/SMS

Web-based Information Sharing Portal

Web-based Alerting and Notification