PLANET ICF-1601 - Manual (Page 19)

After input the password（ 0000
）
and then you can start the factory reset,
and the phone will reboot/reset to factory default settings.
[Sound]
Sound Setting：Select System Settings and then select sound button
First page (1 of 2)
„ Ring Tone： Select Ring tone type
„ Ring Volume：Adjust Ring tone volume
„ Sound Effect Type：Select Sound Effect Type (Connect、Keypad、
Warning Tone)
„ Select Effect：Select Sound Effect Ring Type (Disable、Bell 1、
Bell 2、Bell 3)
„ Sound Volume：Select Sound Effect Ring volume
„ Audio Output：Select Audio Output interface(Internal、External)
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