CONFERENCE COMMANDS.

Any text typed while in the conference is sent to all the parties involved.
A header before the text shows its origin. 
The header is not repeated if the next text has the same origin.

In the conference, the commands should begin with a semi-colon in the first
column, so as to be interpreted as commands and not text.

Commands in the Conference mode:

;C [PORT] [CALL] :
Connect to a call on a port. 
The port indication is optional; the port of the connected user is the default.

;D [CALL]: Disconnects the call from the conference.

;H : Help

;W : Shows a list of the participants in the conference.

;Q : Exit the conference.