[quote=@Prince of Seraphs]
Hey can the animorph blue centaur guy talk to humans without his telepathy?
[/quote]

He talks to humans and other species through telepathy and does not have any form of verbal communication if that's what you're asking, though he understands verbal communication. When it comes to messages over an intercom or other communication device the thought-speech is translated to audio by the machine and so is "heard" as audio.