6
Operating in P25 Trunking Mode
This section explains how your radio operates on a P25 trunking system. This includes how to make group calls, indi-
vidual calls and phone calls.
This feature is controlled by a software license (SFE) and may not be available with your radio.
The features described in this chapter are only available for radios configured for P25 trunking operation.
This section covers:
Checking That the System is Available
About P25 Trunking
The radio may be able to operate on a P25 trunking system as well as a conventional repeater-based system. On a
conventional system, radio users compete for access to individual channels, and one channel can be overloaded with
traffic while others are often unused.
The trunking system allows several channels to be automatically shared by a number of radio users. These traffic
channels are pooled and allocated, as required, for the duration of a call. As calls are completed, the traffic channels
are returned to the pool, to be used for other calls. This system means reduced waiting times to make calls.
Checking That the System is Available
When you first switch to a talkgroup configured for P25 trunking, the radio attempts to access the network and
register on a control channel.
If registration is successful, the trunking system available icon
appears in the display.
Registration is unsuccessful
If registration is not successful,
does not appear, and the display shows
No service
.
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Tait International Ltd July 2021
