Fast Talkie allows you to send PTT Messages with Zello PTT from your device locked screen. With FastTalkie Push-to-Talk communication can be fast and easy.

How it works

Step 1 : Install Fast Talkie
Step 2 : Enable Permissions - Draw Over Apps & Device Administrator
Step 3 : Configure Zello & Lock Screen (Try Fast Talkie)

Website - https://www.fasttalkie.com