Twilio Communications

This is a solid foundation for Twilio integration that covers the three main use cases: sending SMS messages, handling 2FA with Twilio Verify, and building IVR phone menus with TwiML. The patterns include proper error handling, phone number validation for E.164 format, and webhook security validation. The Verify pattern is the standout here since it saves you from rolling your own OTP system and gets you built-in fraud prevention. The IVR example shows the basics of gathering touch-tone input and routing calls. Use this when you need to add phone-based features to your app and want working code that handles the common gotchas like message segmentation costs and rate limits.