I have a very basic phone. Thought I saved a very important voicemail but when I checked voicemail later through "messaging" it kept saying "no voicemail". Finally I remembered *86 is another way to reach voicemail, and fortunately the message was still there - saved for 21 days.
I know this was replied to back in 2009 but I wanted to say to rjb1223 THANK YOU!!! Thanks to your reply I was able to retrieve and re-save a message from my military bf that Verizon had deleted from my phone without warning.