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2.3.1.2 Private Calls..................................................................................... 26
2.3.1.3 All Call.............................................................................................. 27
2.3.1.4 DTMF Hot Keypad ........................................................................... 27
2.3.2 Transmit Interrupt...................................................................................... 28
2.3.2.1 Upgrading a System to be Transmit Interrupt Capable ................... 30
2.3.3 Digital Signaling Features ......................................................................... 30
2.3.3.1 PTT ID and Aliasing......................................................................... 31
2.3.3.2 Radio Enable/Disable ...................................................................... 31
2.3.3.3 Remote Monitor ............................................................................... 32
2.3.3.4 Radio Check .................................................................................... 33
2.3.3.5 Call Alert .......................................................................................... 33
2.3.3.6 Remote Voice Dekey ....................................................................... 33
2.3.4 Digital Emergency..................................................................................... 34
2.3.4.1 Emergency Alarm Only.................................................................... 38
2.3.4.2 Emergency Alarm and Call .............................................................. 38
2.3.4.3 Emergency Alarm with Voice to Follow ........................................... 39
2.3.4.4 Emergency Voice Interrupt for Emergency Alarm ........................... 40
2.3.4.5 Emergency Voice Interrupt for Emergency Voice............................ 41
2.4 MOTOTRBO Integrated Data............................................................................. 42
2.4.1 Overview ................................................................................................... 42
2.4.2 Text Messaging Services .......................................................................... 44
2.4.2.1 Built-In Text Messaging Service ...................................................... 44
2.4.2.2 Services Provided to a Third-Party Text Message Application........ 45
2.4.3 Location Services ..................................................................................... 46
2.4.3.1 Performance Specifications ............................................................. 47
2.4.3.2 Services Provided to a Radio User.................................................. 48
2.4.3.3 Services Provided to a Location Application.................................... 48
2.4.3.4 GPS Revert Channel ....................................................................... 50
2.4.3.5 Enhanced GPS Revert Channel ...................................................... 51
2.4.3.6 Data Revert Channel ....................................................................... 58
2.4.4 Telemetry Services ................................................................................... 59
2.4.4.1 Physical Connection Information ..................................................... 60
2.4.4.2 Telemetry Examples ........................................................................ 60
2.4.5 Data Precedence and Data Over Voice Interrupt...................................... 61
2.5 Scan ................................................................................................................... 62
2.5.1 Priority Sampling ....................................................................................... 63
2.5.2 Channel Marking....................................................................................... 64
2.5.3 Scan Considerations ................................................................................. 65
2.5.3.1 Scanning and Preamble .................................................................. 66
2.5.3.2 Channel Scan and Last Landed Channel ........................................ 67
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