# Page Not Found

The URL `enable-channels/sms/sms-10dlc/opt-in-and-opt-out-compliance` does not exist.

You might be looking for one of these pages:
- [Opt-in and opt-out compliance](https://docs.bird.com/applications/channels/channels/supported-channels/sms/concepts/opt-in-and-opt-out-compliance.md)
- [SMS message types and compliance](https://docs.bird.com/applications/channels/channels/supported-channels/sms/concepts/sms-message-types-and-compliance.md)
- [Singapore SMS Compliance](https://docs.bird.com/applications/help-and-reference/deliverability-and-compliance/singapore-sms-compliance.md)
- [US SMS/MMS compliance](https://docs.bird.com/applications/help-and-reference/deliverability-and-compliance/united-states-sms-mms-compliance/us-sms-mms-compliance.md)
- [US Voice compliance](https://docs.bird.com/applications/help-and-reference/deliverability-and-compliance/united-states-sms-mms-compliance/us-voice-compliance.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.bird.com/applications/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.bird.com/applications/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/applications/channels/channels/supported-channels/sms/concepts/opt-in-and-opt-out-compliance.md`)
- Use `Accept: text/markdown` header for content negotiation