GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual User Manual
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PL1877A Microprocessor Radio Telephone Interconnect Parameter
Modification
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12/10
Procedure from a Mobile or Portable Equipped with DTMF Pad
From the mobile, enter the command *#0. If the PL1877A is to require a prefix prior to the *#0
command, this prefix must be entered into parameters 422–427. The prefix gives additional protection
against unauthorized or accidental parameter changes. Once you have entered the prefix code, if so
programmed, followed by the *#0 command, the parameter modification procedure is the same as for
land-line remote programming of parameters.
Once you have completed programming the desired parameters, exit the parameter modification routine
by entering a ## from the mobile DTMF pad. The PL1877A should return a series of 6 disconnect beeps
to the mobile, informing you that the patch is in the idle condition.
N
OTE
: The DTMF programming mode times out after approximately 1 minute of no activity from the
user. When this occurs, the PL1877A returns to idle operation.
The following is a list of parameters that are programmable via DTMF:
Parameter Function
11
Determines whether access command is * or #*.
12
Determines whether the normal release command is # or ##.
16
Determines whether phone line reversal or loss to disconnect mobile originated call is
disabled or enabled.
17
Determines whether phone line current reversal or loss to disconnect land-line originated
call is disabled or enabled.
26
Enables or disables multiple ringing to mobiles.
28
Enables or disables enhanced VOX attention getting ticks.
33
Allows “over” beep to phone user to be enabled or disabled.
34
Allows mobile go-ahead beep to be enabled or disabled.
37
Determines whether mobile DTMF regeneration, after call is established, is enabled or
disabled.
45
Determines whether DTMF 1 tone upon automatic phone line access is enabled or
disabled.
64
Enable or disable disconnection, upon detection of dial tone, of a land-line originated
call.
69
Determines whether the ring signal generated to the mobile is a low or a high frequency.
121
Mobile audio cut-through delay.
122
Mobile inactivity control.
128
The time that the PL1877A is to pause and wait for a dial tone when the pause character
is encountered in an auto-dial number.
131
The number of busy tone cycles that must be received to cause the PL1877A to
disconnect during a mobile originated call.