This read-only INTEGER reports the bandwidth used in the transmit direction for Non-Time-Stamped traffic on the trunk. An administrator uses it to see how much of the trunk's capacity is consumed by this lower-priority, delay-tolerant traffic class relative to more time-sensitive classes like Ts or Voice. For example, high Nts usage crowding out headroom needed for Ts traffic would prompt the operator to reconsider which traffic classes are permitted on the trunk via parTrkCnfgTrafficClassNts.