Overview Twilio's Messaging platform sends and receives messages across multiple channels through a single API. All channels use — only the address format changes. | Channel | Address format | Rich media | Template required? | Reach | Skill | |---------|---------------|------------|-------------------|-------|-------| | SMS/MMS | (E.164) | MMS: images/video, US/CA/AU only | No | Global (180+ countries) | | | WhatsApp | | Yes (images, docs, video, location) | Outside 24hr window: yes | 190+ countries | | | RCS | Same number (via Messaging Service) | Yes (rich cards, carousels, video) | No | US…