Outbound
Send SMS globally from custom sender IDs via the REST API or sms@v1 action within call flows. Support for transactional, notification, and marketing messages. Delivery reports (DLR) for every message.
Overview
Send SMS messages to any mobile number worldwide using the Callr REST API or the sms@v1 action within Callr Actions call flows. Use custom sender IDs (alphanumeric or numeric) to maintain brand consistency.
Sending Methods
REST API: send individual or batch messages programmatically. Callr Actions: trigger SMS as part of a call flow (e.g., send a confirmation SMS after a call). Both methods support scheduling, custom sender IDs, and delivery reports.
Message Types
Transactional: order confirmations, OTPs, account alerts. Notifications: appointment reminders, delivery updates. Marketing: promotional campaigns with opt-out compliance. All types support GSM and Unicode encoding for international character sets.
Delivery Reports
Every message generates a Delivery Report (DLR) with status: delivered, failed, pending, or expired. DLRs are delivered via webhook to your backend for real-time tracking.
Others features
We own our network
Global coverage
Order numbers in just one click in over 220 countries, including premium, vanity or toll-numbers.
Encrypted and secure
We offer state-of-the-art data encryption with HTTPS, SIP TLS & SRTP.
Reliable network
With multiple data centers and servers around the world, we offer a robust service you can rely on.
Registered carrier
We operate our own network for better performance, localization and support.
