There probably is, but again, Phase II is still in development and not currently in use yet--anywhere. I submitted a request for the disclaimer on the TxWARN P25 page to be removed, since it is inaccurate. I also don't know if there even is a designator for TDMA 2-slot yet. It will probably be at least another two or so years before the first Phase II systems start rolling out, the first of which, according to my source, will be the new City of Houston system's Public Safety (HPD/HFD) layer (the City Services will be Phase I), and that won't happen until at least 2012.
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