End-to-End encryption (E2EE) for one-to-one Microsoft Teams calls
When an E2EE call is initiated, the communication between both parties in the call is encrypted from end-to-end. No other party, including NHS England or Microsoft, has access to the decrypted conversation. If E2EE is not enabled, Teams still secures a call or meeting using encryption based on industry standards. Data exchanged during calls is always secure while in transit and at rest.