tripping over Telnet

["Info" <info cmis-inc com>]

I just put RedHat 8 on a machine.  I've been trying to telnet to it.  But it refuses connections.  I've tried disabling the firewall.  (Everytime I run the gui, it starts out with the firewall at high security. Since box refuses to talk, I suspect that it is the case.)  

Anyone got a clue as to where the real enable Telnet switch is hiding?