Fax over IP (Internet Protocol), or FoIP, allows users to fax documents over the Internet instead of using a standard fax machine. The consolidation of separate voice, fax and other data resources offers the opportunity for savings and has become a popular choice for many network managers who seek to utilize excess broadband capacity for transmissions over traditional communication.
Fax service on demand which reducing cost of faxing machine and telephone lines. We are providing fax solution in three way. 

1. Web2fax
2. Mail2fax
3. Fax2mail

  How It Works
FoIP enables standard fax machines to work with packet networks by extracting the fax image from an analog signal and carrying it as digital data over a packet network. Historically, two methods have been used for sending FoIP networks: the real-time methods (T.38) and the store-and forward method (T.37). The primary difference in the two approaches lies in the delivery and method of receipt confirmation.
T.38 is the fax transmission protocol selected for H.323. Fax data in its original form is digital, but it is modulated and converted to analog for transmission over the PSTN. This analog form uses 64 kbps of bandwidth in both directions. FoIP IWF (interworking function) reverses this analog conversion by transmitting digital data over a packet network and then reconverting the digital data to analog for the receiving fax machine. This conversion process actually reduces the overall bandwidth required to send a fax, because the digital form is more efficient and the fax transmission is half-duplex (meaning only one direction is used at any given time). The peak rate for a fax transmission is 14.4 kbps in one direction.