Nowadays already it is possible to realise all type of transactions by Internet. Since he is especially comfortable and fast, many users prefer to use the digital route instead of the traditional one. To send fax by email has many more advantages than the traditional fax shipment. Not only is very practitioner, but also that is very economic and ecological, since is not needed red, neither paper nor a special apparatus of shipment. It is only necessary to count on a computer and a connection to Internet. At the moment many companies exist that offer this type of services, but before contracting a package of shipment the conditions are due to compare at great length that each offers. Some of the most important points that they are due to consider are the following: if the package allows to send and to receive all type of archives of different formats, a limitless fax reception or to maintain the line and the telephone number.