Tiantong Quantum Encrypted Satellite Communication Terminal is a domestic high‑security suite integrating Tiantong‑1 satellite and quantum encryption for confidential calls in remote off‑grid zones, for field missions and confidential command. It comprises encrypted handheld terminals, fixed satellite landlines, quantum TF cards, intranet E1 gateways and a security management platform. Adopting quantum random keys for "one‑session‑one‑key" (keys discarded after use), it holds Level‑3 commercial cipher certification.