TelnetCE: Scanning extra characters with the Universal TE and an External Scanner / Basic COM PORT Settings
How to Hack Via Telnet: 6 Steps (with Pictures) - wikiHow
computer Freaks and hacker - How to Hack Telnet Using Zenmap: First Download the Zenmap telnet scanner free and use it by typing in the IP's range in the 'Target' Menu of
Penetration Testing on Telnet (Port 23) - Hacking Articles