In general, the lower the cost of buying, installing, and maintaining an emergency communication systems is, the more popular such systems may become in society; and the more common these systems are, the more likely it is that these systems will be available to help during emergencies in more locations. More important than just helping with emergency response, modern mass-notification systems have become a valuable thing to have for everyday, non-emergency communications. Being able to use an emergency communication system for both kinds of communications lets the owner of the system get the most value.