GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 109)

PL1877A Microprocessor Radio Telephone Interconnect Parameter Modification
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Installation
To enable the station/repeater enable feature, program parameter 56 to 1.
N OTE : The station/repeater enable feature is not available when the PL1877A is programmed for RX
VOX carrier detect (parameter 3 = 0; parameter 5 =1). This is because the monitor output is used for
channel scanning in that configuration.
The station/repeater enable prefix consists of 1–6 DTMF digits. Each digit has a valid range of 0-D.
Unused digits must be filled with FF (hexadecimal FF). To completely disable the prefix (thus requiring
only **# as the enable command), store FF in all digits.
Parameter Function
56 Disable station/repeater enable feature = 0
Enable station/repeater enable feature = 1
Default = 0
428-433 Station/repeater enable prefix.
Miscellaneous Features
Parameter Function
26 Disable multiple ringing to mobiles = 0
Enable multiple ringing to mobiles = 1
Default = 0
33 Disable “over” beep to phone user = 0
Enable “over” beep to phone user = 1
Default = 1
The over beep is returned to the phone user when the PL1877A detects loss of mobile
carrier. It indicates that it is the phone user’s turn to talk.
54 Don’t allow mobile user to access busy phone line with *** command = 0
Allow mobile user to access busy phone line with *** command = 1
Default = 0
If the mobile has attempted to access the PL1877A for an outbound call and the
PL1877A detects that the phone line is already in use by an attendant (line-sharing
telephone user), busy tones are transmitted to the mobile. The PL1877A continues to
return busy tones for 30 seconds, or until the attendant hangs up. If the attendant hangs
up, the PL1877A accesses the phone line for the requested outbound call. In this
situation the mobile can force the PL1877A to access the busy line by sending ***.
69 Ring signal generated to mobile is low frequency = 0 (low frequency is a 430/390 Hz
combination)
Ring signal generated to mobile is high frequency = 1 (high frequency is an 840/800 Hz
combination)
Default = 0