Software Linux Telnet

cu

Found in package: taylor-uucp
Homepage: http://www.airs.com/ian/uucp.html
Usage: cu -l /dev/ttyS0
Exit Sequence: <Enter>~.<Enter>
Where ttyS0 is com1

minicom

Found in package: minicom
Homepage: http://alioth.debian.org/projects/minicom
Usage: minicom /dev/ttyS0
Exit Sequence: Ctrl + A, Z, X, <Enter> (it has pretty menu's after the Ctrl + A part, you should be OK)
Where ttyS0 is com1

cat

Usage: cat /dev/ttyS0
Where ttyS0 is com1