SMSIdea E-Fax is a new generation Fax Solution that provides you the flexibility to send and receive faxes directly through email. We give you a phone number, which is mapped to your email id. The number when called gives a fax tone. An SMS is sent to you after the fax is received. Fax is available in your mailbox as a PDF attachment. Replying to the email can send a Fax to the sender.