Hi, Welcome to the club!
Voice control is a Module change. I bought an S-Max one for mine ( fairly sure they're the same, will double check ) and have never used it as I was given another for a more than reasonable price.
If you want ( and assuming it is uasable on C-Max ) we can negotiate a price. I assume you do not have USB, my module does not support this feature.
2010 Titanium 2.0 TDCI Panther Black.