Twilio has announced enhancements to its HTTP Callbacks (webhooks) Connection Overrides for Voice, allowing developers to customize their application's calling experience. These new features include the ability to override default connection settings, such as longer timeouts to support intermittent network issues and shorter timeouts to speed up failover. Additionally, developers can now retry failed callbacks with customizable retry policies, total timeout budgets, and server name indication (SNI) for improved security. The enhancements are available on a per webhook URL basis and can be accessed through the API resource properties and TwiML attributes.