From XMPP WIKI
Here you can find technical pages.
- Core - Information about the core XMPP technologies for XML streaming.
- BOSH - An HTTP binding for XMPP (and other) traffic.
- Jingle - SIP-compatible multimedia signalling for voice, video, file transfer, and other applications.
- Multi-User Chat - Flexible, multi-party communication.
- PubSub - Alerts and notifications for data syndication, rich presence, and more.
- IoT systems - XMPP messaging for Internet of Things.
- Automatic Trust Transfer (ATT) - Transfer trust in OMEMO public identity keys to other devices for automatic key authentication.