FirstNet PTT is built upon
open international standards for mission critical services, which ensure interoperability today and into the future as the network is constantly upgraded. This important difference between LTE public safety implementation and the way that LMR has traditionally been implemented in the United States means there will be inherent operability between and among all users and agencies adopting services based on the mission critical PTT (MCPTT) standards. Simply put, the operability among public safety agencies is similar to how people in the United States can successfully text friends, family and colleagues both domestically and in other countries, despite different networks and devices being used. The technologies used allow users to communicate with one another. This is what implementing open standards for MCPTT does for public safety users using mobile broadband. It is key that this new functionality be simple and easy to use, and it is.