Developers guides

DevelopersIntermediateSMPP vs HTTP API: which one do you actually need?SMPP is the wholesale protocol between carriers; an HTTP API is what applications should use. Throughput, receipts, retries and operations compared, and when SMPP pays.2 min readUpdated 21 Sep 2026 DevelopersAdvancedSending OTP and verification codes that arriveMessage format, validity, retries, fallbacks and rate limiting for one-time codes, with the API settings that matter.2 min readUpdated 26 Aug 2026 DevelopersAdvancedRunning delivery webhooks in productionVerify, acknowledge fast, process later, deduplicate, order by time, and monitor. The checklist for a handler that survives real traffic.2 min readUpdated 9 Jul 2026