For Android, detect Call Control from documented management, network, or vetting evidence; treat state queries as periodic observations rather than real-time events. Correlate Application Permission via Android Enterprise DPC / Application Vetting [DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review]; File Modification via Application Vetting / Forensic Acquisition [Dynamic filesystem trace or acquired app-container/filesystem artifacts: App inserts, updates, or deletes call log records via CallLog.Calls ContentProvider immediately after call-control action — call log tampering to conceal interception]; OS API Execution via Application Vetting / Instrumented Dynamic Analysis [Dynamic API/runtime trace: App invokes TelecomManager.answerCall(), placeCall(), endCall(), or ConnectionService call-handling operations without corresponding user-initiated call UI interaction]. Alert on a sequence or state change inconsistent with the device/app baseline, approved management policy, or expected user workflow; do not infer unobserved API calls, file/process activity, or payload content from management state alone.
| Data Component | Name | Channel |
|---|---|---|
| Application Permission (DC0114) | android:DevicePolicyManager | DevicePolicyManager.getPermissionGrantState(); PackageManager manifest/requested-permission review |
| File Modification (DC0061) | mobile:ForensicArtifacts | Dynamic filesystem trace or acquired app-container/filesystem artifacts: App inserts, updates, or deletes call log records via CallLog.Calls ContentProvider immediately after call-control action — call log tampering to conceal interception |
| OS API Execution (DC0021) | mobile:DynamicAnalysis | Dynamic API/runtime trace: App invokes TelecomManager.answerCall(), placeCall(), endCall(), or ConnectionService call-handling operations without corresponding user-initiated call UI interaction |
| Field | Description |
|---|---|
| ApprovedTelecomApps | Default dialer, approved VoIP apps, enterprise call manager. Derive from MDM catalog. Tightening: system dialer and MDM-pushed VoIP only. |
| CallInteractionThreshold | Default 10s between incoming call event and app call-answer action without user UI. Silent answer within 10s of ring without user touch is covert. |