Tyco P5400 series, Руководство оператора

Страница: 78 / 129

MM-012099-001
77
Individual phone, all call, and emergency calls are transmitted clear if the digital mode is disabled or
inoperative.
If receiving an analog I-Call, the radio responds in the analog mode during the hang time.
When using the
*WHC*
feature to respond to an I-Call (after the hang time has expired), the call is
transmitted in the mode defined by the system mode as programmed for the current system if the ID being
called is not in the I-Call list. If the ID is in the I-Call list, then the call is transmitted as defined by the I-
Call mode programmed in the list for that ID.
The overdial DTMF tones are not available while in the Digital Mode.
9.17.2.1 Scanned Group Calls
Receiving a Scanned Group Call is the same as receiving a selected group call. During the scan hang
time, if the radio was programmed for autoselect, it will transmit back in the same mode it received the
call. For example, if a clear group is entered in the scan list, it will only receive clear calls. If the same
group was available in digital and entered in the scan list, it can receive clear and digital calls, provided
autoselect was programmed in the radio. The user can choose to transmit on the scanned or selected
group. If a group is entered in the scan list more than once and in different modes (clear and digital), only
the first occurrence of the group will be used.
Table 9-5: Transmit/Receive Mode Compatibility for Digital Voice Operation
GROUP/CHANNEL
PROGRAMMING
(TRANSMIT)
CLEAR
RECEIVE
DIGITAL
RECEIVE
CLEAR Yes No
DIGITAL Yes Yes
9.18 RECEIVING A CALL
1. Select the desired conventional system/channel or turn scan ON and make sure desired channel is in
scan list.
2. When the radio receives a call, the radio will unmute and the channel name will appear in the display.
9.19 SENDING A CALL
1. Select desired system/channel.
2. Ensure the channel is not busy by pressing the button momentarily. If audio is heard or if the
icon is on, the channel is busy.
3. When you’re sure that the channel is not busy, press the PTT button and speak into the microphone.