Pre-Wired for phone?
 

I have a 2001 E320 with TeleAid. I do not have phone installed and see no wires in the center console tray, except for the TeleAid buttons. My quick question is, are all US 2001 E320's pre-wired for phone or not? Does the TeleAid mean that it is or does that have nothing to do with the fibre optics wiring. Thanks for any help.