I think the title of FAQ 184: What is Ogg Vorbis (.ogg)? How can I play Ogg Vorbis files? should be changed slightly. It's not apparent just from the title of the FAQ alone that this FAQ relates to phone posts. I believe Ogg files are only used for phone posts and not anywhere else on LiveJournal, but let me know if I'm wrong.
My suggested title change is: How do I play a phone post? What are Ogg Vorbis files (.ogg)?