On some contacts this week we noticed that Last Name Phonetic, First Name Phonetic, and Company Name Phonetic were turned on in some contact lists. I googled around and found a couple articles that said these are Asian Support Fields. I did not really find exactly what Asian Support entails or how to turn it off completely. However, I did find a workaround that basically had me go into the Contact Content Type and hide all these phonetic fields. We are not going to be using these fields anytime soon, so it was not a big deal to turn them off.
Another problem I noticed is that someone had tried to delete and add a new Title field for the Contact Lists. It looks as though this breaks the Contact List Template in all the sites that include the template with the deleted Title Fields. As best practices go I will say this is a big NONO. The first field in just about any list or document library is usually the Title field and it is usually incredibly hard to delete. I have no idea how this person deleted the field, but it was adding multiple full name fields, the last name field was coming up as the wrong field...What I did was delete this contact list on this specific Site Template and create a default contact list with the default fields, because for this particular template I could not change the title field name at all it was so horribly corrupted. The moral of this story is don't delete default required Title fields it will not end up in your favor. SharePoint does not play nice if you cut off one of it's organs...