[TrunkCom] radio ids

[Wayne M H]

On Wed, 3 Apr 2002 10:10:48 -0500, Brian J Cathcart
<scannerdude@juno.com> wrote:

>On Wed, 03 Apr 2002 08:51:12 -0500 "Jerry Kacprzycki"
><Jerry.Kacprzycki@thompsonhine.com> writes:
>> They wouldn't have to if the radio were to automatically transmit it,=20
>> along with the talk group, everytime they keyed up.=20
>
>First, on a trunking system the radios always transmit their individual
>radio ID.  Whether that ID is displayed on the console depends on how
>they have the consoles set up.
>
>Secondly, if the ID is displayed on the dispatcher's console, the
>officers would still have to call in.  Just keying up the radio would =
not
>tell the dispatcher that the unit is in service, or calling in an
>accident, etc.  Plus, some officers are assigned to different districts
>on different days, so the radio ID 83D1 could be unit 3-Alpha one day =
and
>4-Bravo the next.   Some departments sign on using their district unit
>number, i.e. "4-Charlie".  Others use their officer's ID, which does not
>necessarily match the radio's ID.

Also, don't forget, the reply to a conversation won't require the
sending of the radio id if it is transmission or message trunking.
Only PTT-ID requires the replying subscriber to send its radio id to
the control channel first for any type of call.

http://tricari.home.attbi.com/message.html

Newer analog Moto radios have a feature called caller id which allows
the radio id do be displayed. This only works if the radio received
the call grant from the control channel. With ASTRO the same thing
applies but the late entry subscriber will be able to obtain the radio
id from the voice call's background data.

Wayne