My default voicemail number somehow changed to *74274, which gives an error message. How do I switch it back to *86?
Try Settings-&gt;Call Settings-&gt;Voicemail. On my Fascinate this pops up with a dialog box where I can enter a new voicemail number immediately. On my EVO (CyanogenMod) I have to go into Settings-&gt;Call Settings-&gt;Voicemail Settings-&gt;Voicemail Number to get the same box, so it's very similar but does take an extra step.