Who I have the same questioned this topic

I was just going through old voicemails on my mother, and grandmother's, ancient flip phones.  I listened to a lot of old voicemails from my father, who passed away almost 2 years ago, and I would desperately love to save them on my computer as a playable file (MP3, or whatever).  I was able to do this on my iPhone, with the few messages he left me at that number.  But I am trying to save the messages he left over 2 yrs ago from an LG VX5400, and a LG Revere™, I really have no idea where to begin.  They still exist, they're being saved for 21 days or something.  I don't even know if these phones have internet access, but it would mean the world to me to have these voicemails saved.  Not sure what to do.