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Fax Over IP (FoIP)

Fax over IP (FoIP) enables you to virtualize your fax infrastructure with our T.38 Fax over IP (FoIP), by sending and receiving faxes via a Voice over IP (VoIP) network – such as those from Cisco, Avaya, Alcatel-Lucent, Quintum, and others.

With over 70% of new fax ports/lines purchased today being IP-based, it is clear that the demand for Fax over IP (FoIP) solutions has never been greater.

More organizations have come to realize the cost savings and productivity benefits that derive from deploying a FoIP server. In fact, even if you don't have a VoIP network in place today, you can still implement FoIP and virtualize your fax servers through use of our SR140 fax software and media gateway.

With the iMPS FoIP T.38 solution, you can:

Reduce telecom's costs by up to 90% over traditional faxing methods

Virtually eliminate the costs of printing, paper consumption, toner and ongoing maintenance

Increase staff efficiency by up to 90%

Improve security

Route sensitive documents directly to recipients and manage documents automatically

Provide a complete audit trail of fax transactions to meet compliance requirements

Become a greener business by reducing energy consumption and using less environmentally unfriendly consumables

Eliminate junk faxes


What is FoIP?

Fax over Internet Protocol (FoIP), also known as IP Faxing, is a method of sending faxes over the Internet and changes the transmission medium of faxing in much the same way that Voice over IP (VoIP) changes the transmission medium of a phone call.

With FoIP, fax information is sent as “IP Packets” over the Internet rather than as an analogue signal via a phone line and provides an even wider range of benefits than VoIP.

By moving to a Fax over IP environment, and routing faxes over their IP network, organizations can slash the telecommunications cost of every fax, improve the efficiency of their staff, eliminate the ongoing cost of fax consumables and maintenance and increase the overall security of their fax processes.


Technical Overview

Unlike a traditional fax server implementation, in which it is connected to the phone network (PSTN) through a local PBX, FoIP works via a T.38 protocol that describes how to send a fax over a computer data network. T.38 requires a T.38 capable VoIP gateway as well as a T.38-capable fax device.

A fax server that sends or receives faxes using T.38 looks just like any other non-FoIP fax device to its partner. The two end points establish a session, send and verify the transmission of one or more pages and then complete the session with active confirmations from both sides. The difference with a FoIP enabled server is that the first part of the communication session from the server to the network traverses an IP network rather than traveling directly over the PSTN. If the partner device is directly addressable on the same network, the session can use T.38 for the entire transmission. But if the devices are separated by the telephone line, the IP switch manages the “unwrapping” of T.38 packets
into standard T.30 fax transmissions over the PSTN.


To implement the FoIP capabilities of the iMPS FoIP fax server, we use the Dialogic Brooktrout SR140 fax software, available in densities ranging from 2 to 60 channels and supporting up to 120 ports in a single server. Additional channels can be installed with new software license keys.

The Dialogic SR140 FoIP product is compliant to the T.38, SIP and H.323 industry standards and is regularly tested to check compatibility with additional PBX’s, Gateways, SIP Trunking interfaces and other devices.

To verify interoperability with your IP environment, please contact us for an analysis of your IP environment and configuration recommendations.

Why Choose iMPS FoIP?

Capability to virtualize your fax infrastructure

Easily send faxes over the internet through Fax over IP (FOIP)

Integrates with your existing IP PBX

FOIP functionality can be used to implement Least Cost Routing (LCR)

Minimal administration and user training required

Send faxes from any application

Seamless integration with your mail server


Fax Over IP Data Sheet

Download the Fax Over IP Product data sheet

Fax Over IP Interoperability Data Sheet

Download the Fax Over IP Interoperability Product data sheet



Want to discuss Fax Over IP (FoIP) with an expert?

Call us today on:

USA: 800 429 8983 or (1) 321 726 9941
UK: 020 8972 1390

or email the team at sales@international-presence.com





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