+-----------+                        +-----------+
           | Call Home |                        | Call Home |
           |    DOTS   |                        |    DOTS   |
           |   server  |                        |   client  |
           +-----+-----+                        +-----+-----+
           (D)TLS client                        (D)TLS server
                 |                                    |
                 |         1. (D)TLS connection       |
                 |----------------------------------->|
                 |         2. Mitigation request      |
                 |<-----------------------------------|
                 |              ...                   |