side note about telnet and telnet style programs...
if youre using telnet for anything you want to keep secure such as your user / pass to the site youre connecting to, dont use telnet at all, if the site / server youre connecting to uses SSH, use it instead
http://www.chiark.greenend.org.uk/~sgtatham/putty/
you can get more info about it here, bsaically the concern about telnet is that it transfers everything in plain text without any exncryption for anything including user / passes
these putty tools actually encrypt and compress the data before sending it therefore making it more secure and a bit quicker for you, plus with this program you can set up what port to connect to because it provides a graphical interface for you