How to make an NPC use team chat with ChatService

I’ve used the function JoinChannel for the channel name “Team” however, it’s not firing an error that that channel doesn’t exist… Would there be a possible way for the AI to speak to players on a specific team? Or would I have to create a channel that both the AI and players on the team he wishes to speak to are apart of?

I would probably make a channel for the AI and players.