RE: Async Communications

[Buck Calabro <buck.calabro@xxxxxxxxxxxxxxxxx>]

Nancy Van Curen wrote:

>Has anyone benn able to do a manual dial 
>to an asynchronous modem attached to
>your 400? I am trying to transmit asynchronously 
>to Citibank a file. IBM told me I had to write a 
>manual dial. I have gotten the controller, line and device
>descriptions defined, attached etc. I can get to the 
>modem, but I can't get it to dial. 

How are you "getting to" the modem?  STRITF?
A typical async connexion is made with an automatic dial, rather than
manual.  When I hear "manual" I think of the old 502 phone sets with the
"talk/data" button, but I remember them as being attached to synchronous
modems...

My async comms programs follow a script somewhat like this:
acquire the device
send ATZ (wake up the modem)
read "OK"
send initialisation string (AT&C1&D2 maybe)
read "OK"
send ATDT5551212 (dial the far end)
read "CONNECT xxx" and other modem responses
start conversation with far end
...
end conversation with far end
pause 2 seconds
send +++ (enter command mode)
pause 2 seconds
send ATH (hang up)
release device

Hope this helps!
Buck Calabro
Aptis; Albany, NY
"We are what we repeatedly do.
 Excellence, then, is not an act, but a habit." --Aristotle


Billing Concepts Corp., a NASDAQ Listed Company, Symbol: BILL
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