7
A,a
Data Delivery Option (Start & End or Start/End)
The unit is capable of delivering a data stream to the host computer immediately as the call arrives, when the call
terminates, or both. For an inbound call, immediate data delivery allows the Caller ID information to be utilized
before the call is answered for purposes of database queries, call routing, etc. Delivering the data stream after the
call ends provides additional information about the call to the application program such as, the duration of the call
and the number of rings before the call was answered. If lower case "
a
" is set, data is sent as defined by the "
S,s
"
toggle.
S,s
Data Delivery Option (Start/End)
For this toggle to affect operation "
a
" must be set. If call data is to be sent before the call is answered, set toggle to
"
S
". If call data is to be sent only after call terminates, set toggle to "
s
". If call data is to be sent before and after the
call, set toggle "
A
".
B,b
First Ring Suppression
*
Only available on select units.
When this toggle is set to "
B
", the first ring to the output jack on each line is suppressed. Since the Caller ID stream
is sent between the first and second rings on the telephone line, this prevents the call from being answered before
the information is sent. However, in some cases, hearing the first ring might be essential for the user to respond to
the call in a timely manner. If this is true, set this toggle to "
b
".
D,d
Detail Information
Some software applications may need additional call data. When the lower case "
d
" toggle is selected, the unit can
provide an indication for Ring, Off hook, On hook, and Hook flash. The format is as follows: line number (
nn
);
space; and either a
R
(
R
ing),
F
(of
F
hook),
N
(o
N
hook), or
H
(
H
ook flash). The date and time (HH:MM:SS)
follow at the same offset as the date/time field in the comprehensive format. In the detail mode, the time is
delivered in a 24 hour format. (Please note: If the "
c
" toggle is selected, a leading "
$
" will be added to the above
data string). For more information see the section on Detail Mode on page 9.
O,o
Inbound/Outbound Select
For basic Caller ID applications, use the upper case "
O
". If complete call accounting is required, use lower case
"
o
". The lower case "
o
" instructs the unit to deliver for both inbound and outbound calls.
T
Always
T
Operating Commands Discussion
@
Handshaking character when sent
The unit will return "
#
" when "
@
"
is sent. This can be used to establish communication between the computer and
the unit. One application for this command is a software setup routine that automatically searches for the unit by
sending an "
@
" character on each
COM
port and
IRQ
until a "
#
" is returned. The corresponding
COM
port and
IRQ
number then can be set automatically in the application.
V
Firmware version and all settings
This command returns the firmware version, all toggle and line number settings, and date & time (in military
format) on the internal time clock. On start-up, toggles will be defaulted to all upper case values; the line number
will be set to "
L=01"
; and date & time will be set to zero. All toggles and line number settings are stored in non-
volatile memory and will remain saved even if the unit loses power. The internal clock does not run while the unit
is off, and therefore, it must be reset when power is restored. The clock can be reset by the software using the "
Z
"
command or will be reset on the first good Caller ID signal. Subsequent Caller ID signals with good checksums
will continue to reset the internal time clock with the telephone company's time.
