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Rugged/Specialized Phones
I upgraded my Motorola ES 400 firmware and lost the PTT key mapping.
Map PTT button on Kyocera Torque
RugGear RG500
Sonim XP6
Sonim XP7
ecom Smart-Ex
Mapping the PTT button for DuraForce XD and PRO
Duraforce XD
Mapping the PTT button on CAT phones S30/S40
Setting up the Sonim XP3, XP3plus, XP5s, and XP5plus devices
Setting up the Honeywell Dolphin CT60 for PTT
Setting up the RugGear RG650
Bring Zello to the Foreground with a Ruggedized Device PTT Button
Setting up the RugGear RG725