# Channel Messenger > A private messenger: end-to-end sealed messages carried phone to phone over Bluetooth, Wi-Fi Direct and local Wi-Fi, with an Internet mailbox server as the fallback that cannot read anything. ## Docs - [Complete documentation, one file](https://channelmessenger.net/docs/all.md) - [Index](https://channelmessenger.net/docs/index.html) - [Overview](https://channelmessenger.net/docs/readme.md) - [Specification](https://channelmessenger.net/docs/spec.md) - [Protocol](https://channelmessenger.net/docs/protocol.md) - [Threat walkthrough](https://channelmessenger.net/docs/threat-walkthrough.md) - [Network metadata](https://channelmessenger.net/docs/network-metadata.md) - [Attachments and cost](https://channelmessenger.net/docs/attachments-and-cost.md) - [WhatsApp gaps](https://channelmessenger.net/docs/whatsapp-gaps.md) - [Languages](https://channelmessenger.net/docs/whatsapp-languages.md) - [UI consistency](https://channelmessenger.net/docs/ui-consistency.md) - [Export compliance](https://channelmessenger.net/docs/export-compliance.md) - [France crypto declaration](https://channelmessenger.net/docs/france-crypto.md) - [Data safety (store questionnaire)](https://channelmessenger.net/docs/data-safety.md) - [Decisions log](https://channelmessenger.net/docs/decisions.md)