Operating and installation manual for GSM mode
903 501 - V1.0
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8.
Selection and function buttons
Return to the previously selected menu or abort when making an entry.
Switch off internal acoustic alarm.
Resolved fault messages can be reset.
Confirmation of changed parameters.
Scroll menu up
Scroll menu down
Delete entry
Additional information and settings
Activate modem's test function
Shift key for character selection
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