Sending fax without fax machine - is a popular VAS, which allows to send fax, while not having physical fax machine.
User uploads file from User web-interface, specifies number, to which to send fax, and all the rest is performed by the system.
User's menu is described in section Send fax.
Advantages over regular fax:
After fax has been sent, file with fax is attached to CDR.
Ten this file could be downloaded through Call detail report.
Configuring this VAS is described in section Configuring sending fax through web-interface.