A creature that has telepathy can communicate mentally with any creature that has a language, even if they don’t share the language. The other creature must be within line of effect and within a specified range. Telepathy allows for two-way communication.

Published in Monster Manual 2, page(s) 219, Monster Manual, page(s) 283, Rules Compendium, page(s) 316, Monster Vault: Threats to the Nentir Vale, page(s) 125.