When you connect to a Virtual Environment System you use a client. A client is simply a program you run from your machine. This program connects you with the server somewhere on the network. If you used telnet to get here, your client is telnet.
This system is not designed for use with telnet. It has many customized aspects for which telnet simply does not support. Because of this it is suggested for your own benefit and enjoyment that you get a more robust client. These include tinyfugue, pueblo and any other mud-specific client you can digup. Some client links:
TinyFugue
tkMOO-lite
Savitar