Has anyone came across a document or website that would outline how a municipality would convert to MPSCS. Let's say your a county with 100 radios and 2-3 frequencies, F1, F2, F3. How would you convert to MPSCS under such a setup. Would you do a phased in approach and the old radios would remain around during the conversion(or a new TGID patched), who decides on the TGID's and alpha tags that you would be assigned, is this FCC or the state. Once your given TGID's, who decides who get's which ones. If your assigned let's say 3 TGID's to mimic the older F1-F3 channels is this the way that this might be done. Now, how does one build a business case for this such as cost savings etc, would it include FD and Public Works as well or would they be phased in later. I know MPSCS has costing to it and wanted to know more about this.