This read-create Integer32, in seconds from 0 to 3600, specifies how long the reorder tone (fast busy tone) plays unless interrupted by the called party hanging up, with 0 meaning indefinite generation. Admins care because reorder tone signals a network-level call failure to the caller, distinct from a normal busy signal, and its duration affects how long that resource stays occupied. For example, an admin seeing calls that fail to route properly might check this timeout to ensure the reorder tone plays long enough to be clearly heard before the call clears.