KVCP — Kemet Voice & Video Call Protocol

1. Charter

We establish KVCPas the Network's real-time communications protocol for voice and video between Nodes. KVCP operates alongside KSMP— session setup may originate from an encrypted thread, but media planes follow KVCP's signaling and permission model. The Organization coordinates session establishment; media flows peer-to-peer where topology permits, with relay fallback when direct paths fail.

2. Entities

• Call Session — bounded realtime room with explicit participant set and lifecycle (ringing → active → ended).
• Signaling Plane — authenticated exchange of session descriptors, ICE candidates, and state transitions. Signaling metadata is minimized; no media plaintext transits signaling.
• Media Plane — SRTP-encrypted audio/video between participants or via approved relay infrastructure.

3. Guarantees

• Authenticated call initiation — only verified Nodes may ring a peer.
• Explicit accept/decline — no silent media capture.
• Session teardown propagates to all joined devices.
• Lock-screen and foreground presentation follows platform policy with user-visible call state.

4. Explicit Non-Guarantees

• We do not claim metadata opacity — call timing, duration, and participant IDs exist for operational and abuse purposes.
• Compromised endpoints may exfiltrate media regardless of protocol design.

5. Abuse & Rate Boundaries

KVCP integrates with KARP for initiation rate limits and with trust signals from KTSP. Specific thresholds and scoring inputs are withheld as operational security.