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Mission Critical Push-to-Talk is a terminal and application best suited for communication among first responders during crisis situation rescue missions. The user can communicate with the device using the push-to-talk method (PTT), like talking on a walkie-talkie. The communication channel history allows the user to quickly call or send a text, and the Group PTT Call feature allows ad-hoc group calls during emergencies.
The terminals can be used to communicate off-network, and downloadable apps for iOS and other Android devices are available.