The voicemail alert tone is the same as your SMS alert tone. They cannot be changed separately. It was like this on the Storm as well...
Yes they can be changed separately.
1. Add an entry in your contacts for yourself with your own number.
2. Assign whatever you want for your voicemail alert as a Custom Ring Tone/Alert for Messages to that entry.
When you get the SMS that you have a voicemail, it will alert you with that custom tone.
i cant find out how the heck you change the facebook notification either!
Ok - I had this question too... I changed the default SMS alert from what I had it on originally (a tone I decided I wanted to use for texts from a specific person). I want texts from this person to wake me up if I'm asleep, & the tone I've chosen is the best one to do that.
However, both my voicemail & SOME Facebook friends' comments still come through as the original alert tone. I've gone everywhere I can think of (even under the Facebook setting under "Other" in Ringtones/Alerts) and set everything to silent except SMS & MMS texts. And I've changed the default SMS/MMS alert tone to a couple of different ones with the same result. Most of the Facebook updates don't sound an alert, but some do, and it's the original alert tone, not the current default tone. Any ideas on how to change this?
I'll try the suggestion for voicemail about making an entry for myself, but what about the Facebook ones?