To re-enable carrier ePTT applications after uninstalling the Orion app:
If your carrier has a built in ePTT solution that you disabled:
- Uninstall the Orion app
- Open settings → Application Manager/Apps → All Application
- Select the ePTT application
- Tap Enable
On Sonim phones, simply uninstall the app. The phone will auto reassign the PTT button to the ‘Phone’ application. To customize, open Settings → Programmable keys and choose the app you would like to use with the PTT button.