The cut-offratio may be defined in general, as the percentage of established facsimile calls that are terminated prior to the transmittal of all the pages in the facsimile transaction.
切断比一般定义为：在传真的事务处理中，已建立的传真呼叫在全部页数传完之前被终止的百分率。
2
Since the failure modes are complex, it is important to define cut-offs precisely so that valid comparisons can be made between cut-offratio measurements from a variety of sources.