VADIC equipment list

VA1601ACU	Auto Call Unit Chassis			$165
VA3405DSH	Modem, 1200 Baud, Full DPX, CBS-DAA	$665
VA801ADMS	Dialer, Pulse, CBS-DAA			$285
VA890		Line Monitor Card			 $90
VA1601U		Chassis to hold the VA831		$165
VA831BS		RS232n to RS366 Converter		$400

Vadic wizard: Steve Gartner (customer services, Western region field
				service manager), 744-0810

Vadic dialer/modem protocol

To initiate a call on the Vadic dialer the following sequence of characters
should be sent to the modem:

1.  STX ("α", octal 002).  This starts the transaction.

2.  Dialing digits, ascii 0-9.  If "=" (octal 075) is sent, the dialer will
wait for another dial-tone before proceeding.  If "<" (octal 074) is sent,
the dialer will stop dialing at that point and transfer to the modem whether
the other end answers or not (don't do this).  Up to 31 digits may be given.

3.  S1 ("∂", octal 017).  This indicates end of buffer.

4.  ETS ("β", octal 003).  This actually starts the dialing from the buffer
just sent.

At this point, the dialer will respond with a single character.  The meanings
of each are as follows:

"A"  Call completed with no problem, a data set answered and control is transferred
to the modem.  To hang up, the modem's <break> protocol must be invoked.

"B"  Call did not go through.  This is caused by Trunk Busy, Remote Busy, and
Ring no answer.  Also a resoponse to an abort (see below).

"G"  Data line occupied.  dialer's phone line is busy.

Other good things.

If the dialer doesn't like the character you just sent it, it will respond as
follows:

"D"  Format error

"E"  Parity error

"F"  Too many digits in number.

At any time before the receipt of an "A", you can send the dialer a SOH character
("↓", octal 001) to abort.  The dialer responds with "B".  If a number has been
sent to the dialer it is remembered and can be redialed.  This is usually done
when the dialer reports that the call did not go through.

If a complete phone number has been sent to the dialer, the same number can be
redialed by sending STX and then ETX.  This can be done after a complete call,
or after the call has been aborted.

Dialnet numbers:

GSB			326-1639
LOTS			329-1870
SU-AI                   494-1659