User Manual
Table Of Contents
- 1 SAFETY SYMBOL CONVENTION
- 2 RF ENERGY EXPOSURE INFORMATION
- 3 OPERATION SAFETY RECOMMENDATIONS
- 4 OPERATING RULES AND REGULATIONS
- 5 PRODUCT DESCRIPTION
- 6 OPERATION
- 6.1 TURN THE RADIO ON
- 6.2 CH-721 FRONT PANEL COMPONENTS
- 6.3 KEYPAD LOCK/UNLOCK
- 6.4 RADIO STATUS ICONS
- 6.5 RADIO MESSAGES
- 6.6 ALERT TONES
- 6.7 MENU
- 6.8 FEATURE ENCRYPTION DISPLAY
- 6.9 SYSTEM/GROUP/CHANNEL SELECTION
- 6.10 LAST SYSTEM/GROUP/CHANNEL RECALL
- 6.11 MACRO KEY OPERATION
- 6.12 RECEIVE A CALL
- 6.13 TRANSMIT A CALL
- 6.14 EMERGENCY OPERATION
- 6.15 ENCRYPTION
- 6.16 WIDE AREA SYSTEM SCAN (TRUNKED ONLY)
- 6.17 PROSCAN
- 6.18 PRIORITY SYSTEM SCAN
- 6.19 SCAN OPERATION
- 6.20 INDIVIDUAL CALLS (P25 MODES ONLY)
- 6.21 STATUS/MESSAGE OPERATION (P25 TRUNKED)
- 6.22 SQUELCH ADJUST (CONVENTIONAL)
- 6.23 TALK-AROUND (CONVENTIONAL)
- 7 BASIC TROUBLESHOOTING
- 8 TECHNICAL ASSISTANCE
- 9 KEYPAD REMAPPING
- 10 RADIO SETUP
14221-1200-2000, Rev. A
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6.20 INDIVIDUAL CALLS (P25 MODES ONLY)
6.20.1 Receive and Respond to an Individual Call
When the radio receives an individual call (a call directed only to the user's radio), it unmutes on the
assigned working channel and turns on the BSY indicator. Line 1 shows “ID” followed by the logical ID
number of the radio sending the message, or the associated name if the ID number is found in the
individual call list. The individual call indicator displays *INDV* on line 2. The radio can be programmed
to ring when an individual call is received. If enabled, the ring begins five seconds after the caller unkeys
and continues until the PTT button, the CLR button, or IND is pressed.
NOTE
Hookswitch functions the same as CLR key in I-CALL and menu modes.
If a response is made to the call prior to the programmed call-back time-out, the call is directed to the
originating unit. If a response is not made before the call-back time-out, the radio returns to normal
receive mode, but * WHC * is displayed. If the caller's ID is not received, UNKNOWN displays for the
duration of the call and there is no call-back hang time.
To respond after the call-back time-out, press the IND key. The radio's display shows the callers ID on the
first line and WHCI=1 on the second line. Pressing the PTT button at this point initiates an individual call
back to the original caller. If the last call was a group call, the display shows WHCG=1. Pressing the PTT
button places the call as an individual call.
The radio stores the IDs of the last 10 callers in the Calls Received List as shown. Individual calls are
stored in the top half of the list (1-10) and group calls are stored in the bottom half of the list (1-10). The
most recent call is stored in position 1, the second most recent call is stored in position 2, etc.
To access the list, press the IND key twice. Use to scroll through the list. Press the MENU key to
display the time elapsed since the call was received.
6.20.2 Call Storage Lists
There are two lists available for call storage in the radio; the calls received list (1-10) and the personality
list (1-99 as defined by the user). When the individual call mode is entered by pressing IND, the calls
received list is available. The user can toggle to the personality list by selecting any key other than DIS or
toggle between the two lists by pressing the IND key. If wrap is enabled, the calls received list wraps on
itself and not into the other list.