System Feature Overview 37
68007024085 April 2011
NOTE: A radio does not provide any audible indication to the user when the radio switches
channels. However, the group display on the radio changes.
NOTE: In software version R01.05.00, an Emergency Call may not be serviced if ALL of the
following scenarios occur:
• All Trunked Channels are busy.
• A call for the emergency talkgroup is active on a channel.
Is All Call active?
Is Rest Channel idle?
Is an Emergency Call for the
same Talkgroup active?
Is call on busy Rest Channel
interruptible?
Emergency Call is
transmitted impolitely over
the ongoing All Call because
all radios are on the channel
where All Call is active.
Emergency Call is transmitted
over the ongoing Emergency Call
because the receiving radios are
on this channel. In R01.05.00 and
R01.06.00, it is transmitted
‘impolitely’. In R01.07.00 or later,
Transmit Interrupt is used to stop
the ongoing call.
Emergency Call is transmitted
over the idle Rest Channel.
Emergency Call is
transmitted impolitely over
the busy Rest Channel.
Transmit Interrupt is used to stop the
ongoing call. Emergency Call is then
transmitted on the idle Rest Channel.
R01.05.00
R01.06.00 or
later
In R01.05.00,
R01.06.00
R01.07.00
Yes
No
Yes
Yes
No
No
Yes
No
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