List of URLs to be whitelisted

I need to deploy my Bot behind a firewall. However, from the documentation, I was unable to find a list of URLs that need to be whitelisted.

I have read through the code and found this

https://github.com/Microsoft/BotBuilder/blob/69176d237bc9ba7a5b506d55389a5c76f099e411/Node/core/src/bots/ChatConnector.ts

Not sure if this list is sufficient and need advice on this.

via Ronny