Just a little history on Warren TRS: When Warren County, and City of Vicksburg first implemented TRS back in the day, they were separate systems. County had an Motorola Smart Net, using analog, and digital of the ASTRO (Which fit the APCO P25 CAI format) flavor. City had an Motorola Smart Net using analog and digital of the VSELP flavor. You could not monitor the VSELP format at all as there was never an scanner made, or software that followed it. Then Vicksburg and Warren County came to an agreement, and signed MOU's merging the 2 systems into one. This was upgraded to an full Motorola Smart Zone using the ASTRO format. It uses analog, and digital (P25 CAI) TG's. It is now about to under go upgrades to the Motorola ASTRO-25 format, which is fully P25, and will use the 7.X version of ASTRO-25 bringing it to Phase II capabilities, and then will merge with the MSWIN, to become an 4 site simulcast cell. This will allow the entire county to use the MSWIN, and have all the advantages of the statewide system. They will also have smoother interop with LA using ISSI with the LWIN for events such as disaster coordination for Hurricane Evacuations, New Madrid Fault Zone events, etc... And also for mutual aid for the various LEA's and such as needed.