Account and device bootstrap

Phone OTP verifies account identity and helps bootstrap device-level keys.

Contact discovery and anti-abuse

Discovery routes and visibility controls are protected with anti-enumeration and rate limiting mechanisms.

Signaling and presence

Cloud signaling rooms and presence endpoints coordinate sessions and availability metadata.

Direct WebRTC payload path

After signaling, message and media payload are exchanged over direct encrypted DataChannel transport.

Delivery and retry behavior

If recipient is unavailable, client-side outbox retries and local retention policies handle delayed delivery.

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