Fixing calls that always go directly to voicemail on Android includes disabling Do Not Disturb, call forwarding, call barring, Bluetooth, and more.
This article describes several methods for turning off voicemail on your Android phone. One way to turn off voicemail is by changing your call-forwarding settings. You can disable three functions: ...
To call your voicemail on an Android phone, open your phone's dial pad and hold your finger down on the "1" key.
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