# Phase 4 — Control Room & Field Operations

This phase introduces the operational control-room foundation:
- Control-room event stream
- Check-call scheduling/response records
- Geofence enter/exit/breach events
- Patrol runs and scan events
- Escalation rules
- Protected field APIs
- Control Room operator page with live polling

Production mobile background GPS, push notifications, offline queueing and WebSocket-scale streaming remain planned for the native-app/scalability phase.