# Check service health Health check endpoint to verify SMS Gateway availability. Use case: Monitor service status before sending SMS or in health check routines. Request: POST with empty body (no parameters required) Response: HTTP 200 if service is operational Endpoint: POST /api/Services/checkServiceStatus Version: 27.1.0.4 Security: ## Response 200 fields (application/json): - `globalStatus` (boolean, required) Overall service availability. - `dbStatus` (boolean, required) Database connectivity status. - `servicesStatus` (boolean, required) Internal services availability. - `errorMessage` (string) Error message if any component is unavailable. Empty string when all systems are operational. - `versionNumber` (string, required) Current API version. Example: "27.1.0.2"