Table of Contents
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Global DVRS Features .............................................................................................. 92
Automated VR Activation (AVRA) ......................................................................................... 92
Band Locking ........................................................................................................................ 94
In Car Monitor (ICM) ............................................................................................................. 94
Primary / Secondary - Operation and Programming Overview ............................................ 96
Remote Mode change of DVRS by FNE / Dispatcher .......................................................... 98
MSU Scan ............................................................................................................................. 99
Supported MSU Scan Types ................................................................................................ 99
DVRS Enabled / Disabled Rules while MSU Scan is enabled ........................................................99
Outbound Calls (received by MSU from the FNE) with MSU Scan Enabled.................................99
Inbound Calls (received by DVR from PSU) with MSU Scan Enabled .........................................99
MSU ISSI Roaming ............................................................................................................. 100
Unsupported PSU Features ................................................................................................ 100
Digital DVR Mode - Operation and Programming Overview..................................... 101
PSU Affiliation ..................................................................................................................... 101
Group Calls ......................................................................................................................... 102
PSU Proxy Request Priorities ............................................................................................. 102
Signaling Request Interactions with Voice and Signaling Proxy ........................................ 103
Voice Request Interaction with Signaling and Voice Proxy ................................................ 104
MSU Voice and Signaling Proxy Interactions ..................................................................... 105
Talk Group Proxying ........................................................................................................... 106
Talk Group Translation ....................................................................................................... 106
Private Calls ........................................................................................................................ 106
PSU Talk Permit Tones ...................................................................................................... 107
Status Broadcast ................................................................................................................. 107
Local Mode Indication ......................................................................................................... 107
Radio Check / Inhibit ........................................................................................................... 107
P25 Trunking OTAR ............................................................................................................ 107
Patch ................................................................................................................................... 108
Dynamic Regrouping .......................................................................................................... 108
Phone Interconnect ............................................................................................................. 108
Adaptive Power Control ...................................................................................................... 108
Digital Audio Buffering ........................................................................................................ 109
P25 Encryption .................................................................................................................... 109
Emergency in Digital Mode ................................................................................................. 112
Emergency Alarm .........................................................................................................................112
Emergency Call .............................................................................................................................113
Emergency Revert through DVR ..................................................................................................113
Emergency Revert through PSU ...................................................................................................114
Emergency operation during TG Translation ................................................................................114
Fireground (FG) Signaling .................................................................................................. 114
PSU Call Alert ..................................................................................................................... 115
PSU Message ..................................................................................................................... 115
PSU Status Update and Status Request ............................................................................ 115
PSU Location Reporting ..................................................................................................... 115
Automatic PSU Revert to Talk Around (TA) ....................................................................... 115
PSU Group Services ........................................................................................................... 115
Forced Analog DVR Mode - Operation and Programming Overview ....................... 117
Forced Analog All DVR Mode- Operation and Programming Overview ................... 117
Analog DVR Mode - Operation and Programming Overview ................................... 118
DVR Channel Setup for Analog Mode ..................................................................... 118
January 2019
DVRS Installation & Programming Guide - PART I
8M083X25 R14
APX Series P25 Interface
Page 15 of 153
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