Configure Advanced Settings

Tap to open the main menu. From the main menu, go to Settings > Advanced Settings to see the following options:

Option Functionality
Prevent Auto-lock This setting prevents locking the screen while you are on a call using the app.
External Dial Prefix Enter the number required by your iPBX to dial out to an external number.
Emergency calls via cellular Enable to dial the emergency number 911 through your standard cellular network.

Note: Synchronization may impact performance if your contact directory is large.

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