case in practical application, we found that in addition to the fax sent to the user to the same fax number of different, there are companies such as ERP systems with the contents of the document to different customers to different fax fax number, in order to reduce the second second development, cofax provides a common identification number printed page-based software, as long as the customer on the printed page to send a fixed number of locations listed, regardless of the user from any software generated report, cofax system will identify the corresponding number was input to cofax software system directly to the corresponding number on the fax machine. Eliminating the customer's second software development work, but also greatly increase the efficiency of the customer. In practical applications, we found that in addition to the fax sent to the user to the same fax number of different, there are companies such as ERP systems with the contents of the document to different customers to different fax number fax, in order to reduce the secondary development , cofax provides a common identification number printed page-based software, as long as the customer on the printed page are listed in a fixed location to send numbers, regardless of the user from any software generated report, cofax system will have to identify the corresponding number, input to cofax software system directly to the corresponding number on the fax machine. Eliminating the customer's second software development work, but also greatly increase the efficiency of the customer.