Section 4. Programming
4-7
the phone (i.e. whenever carrier is being received). Other mobile users, or anyone
monitoring the channel, are only able to hear the phone caller’s half of the
conversation. This command only applies if the patch is operating in the Half-
Duplex mode.
27#
___#
Half-Privacy Masking Tone
(0 = Disabled, 1 = Enabled)
0
Call Limit Timer
During a phone call, a call limit time is maintained. Double beep warning tones
will be sent to the phone and the radio when approaching the end of the call limit
time. If desired (and enabled), the mobile user may reset the call limit timer by
sending a DTMF “*”.
30#
___#
Call Limit Timer Mode
0 = Disabled
1 = Enabled
2 = Enabled / Allow Mobile Reset
1
31#
___#
Call Limit Timer (1 to 60 minutes)
3
Mobile Activity Timer
During a phone call, the Model 30 needs to see carrier activity every so often to
indicate that the mobile user is still able to control the patch. The Mobile Activity
Timer is reset every time carrier is detected. If the timer expires before carrier is
detected again, the patch terminates the call. Single beep warning tones are sent
to the phone and the radio when approaching the end Mobile Activity time limit.
During simplex VOX operation, continuous audio on the phone may prevent the
mobile user from controlling the patch by holding the VOX detector locked on.
Just prior to the Mobile Activity timeout, the patch will unkey the transmitter for
five seconds to allow the mobile user to regain control. Entering a “0” disables
the Mobile Activity timer.
32#
___#
Mobile Activity Timer (0 to 99 seconds)
30
Set Operating Mode
The Model 30 is compatible with both simplex and duplex radio systems. The
operating mode is set using the command “33#”. Advice on selecting the best
simplex mode is found in Section 3, Operation.
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