Dear Sirs,
After talking to the technical service, they told me that an on-site technician is needed to configure the fax delay feature. In fact they sent me the following URL: http://www.support.xerox.com/support/versalink-c405/support/enus.html?objGUID=7181
The technician introduced a code in the VersaLink C405 and now the machine wait 30 seconds before a fax will be processed.
I can not understand why this functionality can not be configured by the end user, like in the older Xerox machines.
Best regards.
José A. Remesal