E.F. Johnson Company 53SL ES Series, Руководство по эксплуатации

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7-4 53SL ES Series Mobile Radio Operating Manual April 2009
Private (Unit-To-Unit) Calls Section 7 - SMARTNET / SmartZone / P25 Trunked Features
7.4 Private (Unit-To-Unit) Calls
Private calls allow calls to be placed to a specific radio unit. Either the Enhanced Private
Conversation™ or standard Private Conversation modes may be programmed depending
on the capabilities of the radio system. One difference between these call types is that the
Enhanced type provides an indication that the called mobile is not on the air and the
standard version does not. Operation in each of these modes is described in the following
information.
Note With P25 Trunked operation, these calls are called Unit Calls, and they function the same
as the Enhanced Private Conversation mode described in the following information.
The Private Call option switch is required to place these calls, and either that switch or the
Call Response switch is required to receive them. The feature is also selectable via menu
parameter. Private calls are programmed to operate in one of the following modes:
• Disabled
• Answer-only capability
• List only - Unit IDs can be selected from a preprogrammed list only (direct entry as
follows is not allowed)
• Unlimited - Unit IDs can be selected from a list and also dialed directly using the front
panel controls or the keypad on the HHC.
7.4.1 Placing an Enhanced Private Conversation Call
To recall from a list:
1
Momentarily press the Private Call option switch or select the option from the menu.
The alias of the last called mobile is displayed.
2 To select another mobile, rotate the Select switch until the alias for the desired mobile
is displayed.
3
Press the PTT switch and one of the following events then occurs:
(Proceed to the bulleted list which follows Item 3 in the next section for events that may
occur next.)
To make direct entry using front controls or the keypad on the HHC:
1
Press and hold the Private Call option key until a tone sounds (approximately one
second). The last ID called is displayed.
2 If using the front panel controls, enter the ID of the radio you are calling (five digits for
Private Call or eight digits for Unit Call) by rotating and pressing the Select switch. A
single beep sounds when the switch is pressed (if that option is selected). With the