GAI-Tronics MRTI 2000 (No. PL1877A) Microprocessor Radio Telephone Interconnect Installation & Service Manual - Manual (Page 43)

PL1877A Microprocessor Radio Telephone Interconnect PC Programming
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Access/Release – Telephone Initiated - Misc. Access/Release
Disconnection on Phone Line Current Reversal, Land-Line Origin
Allows the installer to enable/disable the automatic disconnect of a land-line originated call in case of a
phone current reversal or loss of loop current. Many phone systems use this feature to indicate the
landline party has hung up, facilitating automatic disconnect of the equipment. Not all phone systems
support this feature; check with your local telephone company.
Disconnection upon Detection of Dial Tone after Access
If enabled, the PL1877A disconnects if dial tone is detected during a landline originated call.
Land-Line Disconnect with DTMF Release Command
Allows or disallows the ability of a landline user to disconnect a mobile-originated call using the DTMF
# command.
DTMF 1 upon Auto Phone Line Access
Enables/disables a DTMF 1 answer tone of 100 ms in duration upon automatic telephone line access
(Direct Access). Some automatic systems have the capability to decode the DTMF 1 as an indication of
answer signal. Enabling this feature allows interconnect compatibility with this equipment.
Time between Answering Call & Generating Beep
Determines the delay between automatic phone line access and beep tone generation. The value ranges
from 500 ms to 1250 ms in 50 ms increments.