There is the old telnet client from Ian P ( http://map.squeak.org/package/14bcecc6-dbb8-4866-bb0c-25278ca882ba ). If you are interested, I could send you a copy of the change set. I have used this (which some modifications) for automated telnet interaction in the past.
I would undoubtedly need some modifications to work in Pharo (or even modern Squeak). -Chris
