# Page Not Found

The URL `faq/migrate-from-legacy-fcm-apis-to-http-v1-for-android-push-notifications` does not exist.

You might be looking for one of these pages:
- [Migrate from legacy FCM APIs to HTTP v1 for Android Push Notifications](https://support.portsip.com/portsip-communications-solution/faq/migrate-from-legacy-fcm-apis-to-http-v1-for-android-push-notifications.md)
- [Mobile Push Notifications](https://support.portsip.com/development-portsip/mobile-push-notifications.md)
- [Webhook Events](https://support.portsip.com/development-portsip/webhook-notifications.md)
- [31 Configuring Email Notifications](https://support.portsip.com/portsip-communications-solution/portsip-pbx-administration-guide/31-configuring-email-notifications.md)
- [Push Notifications](https://support.portsip.com/pbx_v12/push-notifications.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/portsip-communications-solution/faq/migrate-from-legacy-fcm-apis-to-http-v1-for-android-push-notifications.md`)
- Use `Accept: text/markdown` header for content negotiation