Campbell Scientific COM320 Voice Communications Modem - Manual (Page 11)

COM320 Voice Communications Modem
PRESS TWO TO HEAR OR TOGGLE PORT
PRESS THREE TO HEAR OR TOGGLE FLAG
PRESS STAR TO DISCONNECT
3) Navigate around in the menus to learn the program’s capabilities:
a) Press 2 to access the Ports Menu.
b) Press 1 to read the logic state of Control Port 1.
c) Press # to toggle the logic state of Control Port 1 (C1’s LED should
turn on).
d) Press # again (C1’s LED should turn off).
e) Press * to return to “C R ONE THOUSAND STATION” menu.
f) Press * to hang up.
4) Try hanging up the phone without pressing * (disorderly exit) and see if
the modem automatically hangs up after a few seconds.
5) As you press the keys to navigate around in the menus you will find that
occasionally you get an unexpected response. Phone connections are
susceptible to noise pickup and signal attenuation. Depending on your
particular phone equipment and the phone lines and equipment between
you and the voice station, you may at times experience some of the
following:
a) You press * and the voice station hangs up but doesn’t say,
“Goodbye.”
b) A voice callback rings your phone but you pick up to silence
Certain phones are more of a problem due to low signal levels or
switch bounce.
6) Helpful hints for pressing phone keys to control a voice station
a) Press a key firmly (but not too long).
b) Allow a second between key presses.
c) Press the same key again if getting an incorrect response.
d) If no response, try pressing the same key again or press the # key to
recover.
e) If unresponsive, try rapidly pressing a series of five * keys to
disconnect station.
f) Worst case, hang up and allow 6 minutes for the voice station to reset
itself.
Following is the text of the BASIC_VOICE_2.CR1 example voice
callback/callin program employing VoiceSetup( ). The program should be
available for download on CSI’s website under Support/Downloads/Program
Examples. Following the program is a description of its main sections.
5