The CHAT command connects you to the integral chat server,
allowing you to conduct conferences with one or more other
users.
There are 65536 separate channels (or "rooms") of which the
first 256 (*except room 101) are local to this system, and
the remainder may be linked to other systems, allowing
widely separated users to chat.
(*Room 101 links to RoundTable/BPQ chat, if any RoundTable
links have been defined - see below.)
The chat server has its own set of commands, which are
detailed separately in the CHATCMDS manual entry.