This attribute provides the count of the number of burst positions in a Leakage Detection Test Session whether they are scheduled or not. Unscheduled burst positions are created when modems go offline, are in partial service on the test channel, or have the test channel removed from the modem's TCS. The CCAP uses unscheduled burst positions to preserve the position of the modem in the cycle should the modem come back online, recover from partial service on the test channel, or have the test channel restored to the modem's TCS.