DPS has been working on something but I don't know exactly what they are doing.
For the past couple months or so the Wichita Falls dispatcher will call a local trooper and tell them to "Stand by for a Motobridge test with DPS ______" then some other DPS communications center will ask the trooper here for a radio check.
Sometimes they have been doing this several times a day. I have been hearing it almost every day for several months now.
As far as I know they installed Motobridges everywhere back when they first went to P25.