changing ring mode

Question

Hi -

 

I'm trying to change the ring mode of my phone using code like:

 

am.setRingerMode(AudioManager.RINGER_MODE_SILENT);

am.setRingerMode(AudioManager.RINGER_MODE_NORMAL);

am.setRingerMode(AudioManager.RINGER_MODE_VIBRATE);

 

(one at a time, of course...)

 

normal and vibrate seem to work OK, but silent does not.

 

I tried it using 0, 2 and 1 instead of AudioManager.RINGER_MODE_SILENT, AudioManager.RINGER_MODE_NORMAL and AudioManager.RINGER_MODE_VIBRATE, respectively, and got the same results - normal and vibrate work, but silent doesn't.

 

Any idea what I'm doing wrong here?

 

Thanks, and sorry for the sloppy typesetting... :)