Comint,
clearly you have not looked correctly as i see three areawide services which are as follows
Telstra State Mobile Radio
Vertel Team Talk MPT
MCS Digital
clearly as a database administrator you would have seen this as well as in the Metro North & West District as well as the addition of the Motorola Smartnet System in this District as well as the Municipalities in the distict maybe next time you shall check before posting, if not i will add futher details for the Melbourne Metro Radio Network to the list