Animal Control used to be on the City of Calgary EDACS system that also provided communications for Water Works, Streets, Parks and Parking Bylaw. The users, especially animal control, moved to the iDEN aka. Telus MiKE system in around 2005 or so, Parking Bylaw and Waterworks followed later in I think early 2006 and then the EDACS system was taken down. iDEN is currently unmonitorable I am sad to say .
There are rumors that bylaw and like agencies "want to" move to the Smartzone system. I can guarantee they're not there right now.. my source is reliable, but I don't see it happening any time in the very immediate future..