Here a few screenshots of an IOS application I've been working on to allow IOS devices to communicate with external CAD systems. This particular integration is with TicketsCAD.
This is the screen with no calls dispatched in CAD. It will allow creating a new call or sending location information to CAD system.
This screen is show when a call is dispatched. It allows me to set my status as responding to the call as well as GPS Tracking.
After units begin responding or arriving on scene that is shown in the call history. It enables you to see who is responding and who is on-scene.