What We’ve Learned
- • Route diversity is critical—provider aggregation reduces regional outages
- • Webhooks beat polling at scale and improve user experience
- • Country formatting quirks cause more failures than you think—validate early
- • Dedicate numbers for support flows to build trust and consistency
- • Observability (logs + metrics) is the backbone of rapid recovery
Operational Best Practices
Global Testing
Test from real devices and carriers in each target region before rollout.
Retry Strategy
Use exponential backoff and alternate routes to recover from transient failures.
Inbox Hygiene
For long-term numbers, archive old messages and monitor for abuse signals.
Code Expiry
Keep codes short-lived and one-time-use to minimize risk.