Support & Technical Documentation
SMS Center
Quick answers for sending, receiving, scheduling, Email-to-SMS, number management, opt-outs, logs, and delivery troubleshooting across the Crazytel SMS Center.
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FeaturedSMS Center
SMS Center - Getting Started
This guide covers the basics for Crazytel's new SMS Center; inbound setup, outbound setup, contact lists, opt-out lists.
FeaturedSMS Center
SMS Frequently Asked Questions
The SMS Center covers day-to-day sending, 2-way conversations, bulk messaging, scheduled sends, authorised email senders, mobile number setup, address books, opt-out compliance, and message logs.
SMS Center
SMS delivery status webhooks - delivery receipts (DLR) for the SMS API
Get real-time SMS delivery receipts by webhook. Set status_callback on the v2 SMS send, bulk-send or schedule-send API; signed HMAC-SHA256 events for sent, delivered, undelivered and failed with automatic retries.