I found out what the vector graphics protocol is:
------------------------------------------------
RIPscrip graphics are EGA quality graphics that are displayed
over the modem. The BBS sends special codes which are
interpreted by a special term program and draws the screen for
the user. The results can be impressive. While there are
other graphic protocols, such as NAPLPS and ROBO/FX, which are
better than RIP (supporting VGA and better resolutions), RIP is
the only one which can be made with simple ASCII sequences.
------------------------------------------------------------------
It also looks like Telegraphix is the company who created this protocol. (Which
I believe somebody said awhile ago._
Cheers,
Bryan