Send SMS: - Up to 1520 characters
- Set custom caller ID up to 11 alphanumeric or 16 numeric characters
- Set custom label for analytics
- Set custom foreign ID returned in callbacks
- Enable performance tracking
- Enable debug mode
- Set custom time to live
- Send as flash message


Text-To-Voice messages:
- Up to 10000 characters
- Set custom caller ID (after verification)
- Enable debug mode


- Home Location Register lookups
- Mobile Number Portability lookups
- Caller name lookups