🚀 go-pugleaf

I am deaf. I am trying to write a program that will either interface
directly with the modem or via ARexx, some of the Shareware or PD 
telecommunication programs, in a way, so that when it detects a call,
the screen should flash on and off as spectaculary as possible.  Since 
I have an Amiga 2000HD and 3 MB of RAM, memory and disk usage should not 
matter at all. 
I know Unix (Am writing some 4.4 BSD Unix stuff. :) ... but just bought
my amiga a short while ago, and have not really got around to learning
AmigaDos or Intuition, or controlling the serial port .... 
Can anyone help me on this? That is, how may I go about writing a function
call for the flashing of the screen, and another for polling the modem
for incoming calls, or writing an ARexx interface to the telecommunication
programs which can and do report incoming calls (Unfortunately they do it 
quietly).  

	Thanks a lot in advance ...
				Raja S Kushalnagar. 
P.S.  It seems that the SupraModem 2400 can't go under 600 baud. Is there
any way ... (i'm prepared to take apart my modem ... :-) to get it to go
to 300 or 110 baud or even 40 baud (Most TDD's are 40 baud!)?
{root,raja}@athena.berkeley.edu | raja@{soda,ocf,yocomputo}.berkeley.edu
Pending: raja@cory.berkeley.edu | Flames to root@cory :-) :):)