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Sonim XP5s - Manage RTT Settings
Sonim XP5s® - Manage RTT Settings
If you aren't hearing audio on a call, make sure RTT is turned off.
No additional device is needed.
From a Home screen, press the
Apps tray button
Utilize the 5-way navigation pad to highlight and the center button to select.
Select one of the following:
Only during a call
During and when placing receiving a call
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