GAI-Tronics 226-003 S.M.A.R.T. Phones with Keypads - Manual (Page 17)

Pub. 42004-349F
S.M.A.R.T. P HONES WITH K EYPADS P AGE
16 of 21
f:\standard ioms - current release\42004 instr. manuals\42004-349f.doc
04/09
Basic Programming
The following programming command can be entered from any touch-tone telephone. Acceptance of a
data transfer command is indicated via a return code transmitted as an audible DTMF tone.
Call Time-out
The call time-out feature, which is used to limit the duration of calls, can be set between one minute and
4.5 hours. The time limit is set by entering a number from 120 to 32400.
This number represents the number of half-second increments of duration. Entering 0 results in a call
time-out of 4.5 hours.
Enter *37<120~32400># to assign a time limit, or change an existing time limit.
*37 Data transfer command
<120~32400> Call duration (60–16,200 seconds, 0 = 4.5 hours) – See example
below.
# End of string indicator
Multiply the desired time limit, in minutes, by 120 to determine the call duration.
Example: For a call duration of 5 minutes:
5 minutes
× 120 = 600
Therefore, you would enter the character string *37600#, and the phone returns a system-generated
DTMF check-digit.
Table R-1 - Basic Programming Commands
Command: Return: Description:
*37<120~32400># c Write Call Time-out (120-32400
× ½ sec, 0 disables)
‘c’ in the above return fields is the system-generated DTMF check-digit.
Table R-2 - Default Configuration
Parameter Default Setting
Auto-answer Enabled (J14)
Rings Before Auto-answer 0 (not configurable)
Rings After Auto-answer 10 (not configurable)
Dial Tone Detection Enabled (N/A unless keypad is disabled)
Dial Tone Waiting Period 10 seconds
Mute Before Dial Enabled
Audio Receive Level Midrange
Call Time Out Period 7 min
DTMF Dial Rate 100:100 ms