GAI-Tronics 297-003RT4 Retrofit S.M.A.R.T. ADA-Compliant Emergency Phones - Manual (Page 14)

Pub. 42004-355G
R ETROFIT ADA-C OMPLIANT S.M.A.R.T. E MERGENCY P HONES P AGE 13 of 17
f:\standard ioms - current release\42004 instr. manuals\42004-355g.doc
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Call Time-out
The call time-out feature is used to limit the maximum duration of a call. The call time-out can be any
duration between one minute and 4 ½ hours. The duration is set in ½ second increments and the valid
range is from 120 to 32,400. To determine the value associated with a specific time duration, see the
example below.
*37 Data transfer command
<120~32400> Call duration (120 to 32400 ½ seconds) – See example below.
# End of string indicator
Example:
To determine what to enter for the call time-out duration, multiply the desired time limit, in minutes, by
120. For example, to determine the call duration entry for a call time-out of five (5) minutes, do the
following:
5 minutes
× 120 = 600
To enter a call time-out duration of five (5) minutes, enter the character string *37600#.
When the call time-out duration has been successfully entered, the phone returns a system-generated
DTMF check-digit.
Table R-1. Basic Programming Commands
Command: Factory
Default:
Description:
*1 NN < CHARAC ># N/A Write Memory NN (11-13) with characters (up to 24)
*787# 7 Initiate automatic level compensation
*37<120~32400># 840 Write Call Time-out (120-32400
× ½ sec).
Factory default is 840, or 7 minutes.
*821 N/A Turn on the relay output (OUT1)
*921 N/A Turn off the relay output (OUT1)
*99 N/A End programming call. The S.M.A.R.T. phone hangs up.