In today’s modern world, online fax service providers bring very ease and comfort for the fax users. They provide various functionalities to their users in the form of security and mobility. Traditional fax lacks in all these features. Fax providers offer their web interactive interface to the users for making exchange of their documents through fax. Fax providers assign a virtual number to their each user and link that number with their inbox to provide a path to all of their fax docs into the users’ inbox. This feature makes sure the authenticated access to users’ fax docs. Their users can also send the fax by using the same fax number.