How can I secure my voicemail?
Here's the problem I'm having: I lock my iPhone via a password, but when the iPhone's "Emergency Call" button is pressed, it bypasses the password (as it should) - but if my own phone number is dialed from my own iPhone, it takes me straight to voicemail and does not prompt or require any passwords to listen to messages, delete, change settings, etc.. Obviously this is a big problem. Any help would be greatly appreciated. Thanks.
Mac Pro, Mac OS X (10.4.10)