Installing telnet on debian wheezy

I have a trouble when installing telnet-server ( also known as telnetd ) on debian wheezy server.

With normal command like 

apt-get install telnetd

System reply error message ( Unable to locate packet .....). Sceptic with default repository in /etc/apt/sources.list, and i add new repository from kambing.ui.ac.id, you may need this:

deb http://kambing.ui.ac.id/debian/ wheezy main contrib non-free

deb http://kambing.ui.ac.id/debian/ wheezy-updates main contrib non-free

deb http://kambing.ui.ac.id/debian-security/ wheezy/updates main contrib non-free

After you save this url repository, do small things update with command:

apt-get update

And install telnet server programs:

apt-get install telnetd

note:all commands do with root permissions