Looks like this in Sentinel..
It's nothing to do with ICI.. It's a conventional frequency with a NAC. Set up the same as a DCS CTCSS tone (Only Digital)
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And if it really is what the description says it is.. It will be encrypted for sure.. If used at all..
A TG is not required to monitor a conventional CH.
If you really wanna find out.. Add/Create the frequency in a P25 One Frequency system and enable ID Search to see TG's. If there are any.. could be RID's too..