Phone Numbers
SMS Capabilities
Learn about SMS features, requirements, and pricing for your phone numbers
On this page
Detailed SMS Documentation
This is an overview of SMS features. For detailed instructions on sending SMS through automation flows, check our Automation Platform Documentation.
Requirements
To send SMS messages, you need:
- An SMS-capable phone number
- Sufficient credits in your account
- Proper automation flow setup
SMS Segments
SMS messages are split into segments:
- Each segment is 160 characters for standard ASCII text
- Or 70 characters for Unicode (special characters, emojis)
- Longer messages are automatically split into multiple segments
- You are charged per segment sent
For example:
- "Hello! How are you?" (16 chars) = 1 segment
- A message with 200 ASCII chars = 2 segments
- A message with emojis and 100 chars = 2 segments
Costs
SMS pricing varies by:
- Destination country
- Number of segments
- Type of content (standard/unicode)
Monitoring & History
Track your SMS activity in the dashboard:
- Delivery status
- Timestamp
- Number of segments
- Cost per message
- Recipient details
- Content preview
Best Practices
Message Length
- Keep messages concise
- Monitor segment count
- Use standard characters when possible
Compliance
- Include opt-out instructions
- Follow local regulations
- Respect quiet hours
Testing
- Verify number capabilities
- Test delivery to different carriers
- Monitor delivery rates
Want to start sending SMS? Check out our automation platform documentation to learn how to set up SMS workflows.
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