A serverless status callback handler built in AWS can handle real-time data on customer engagements using Twilio's Communications APIs. The solution uses managed products like API Gateway, SQS, SNS, S3, and DynamoDB to enable queue-based leveling and process status callbacks in real-time. The handler can be customized to pass custom parameters in API calls and receive them back in status callbacks. The solution is built using AWS SAM and can be deployed as Infrastructure as Code (IaC) using CloudFormation. The codebase provides a foundation for a serverless system to handle Status Callbacks from Twilio APIs, enabling monitoring, reporting, and analytics capabilities, as well as error handling and customization options.