Fax over IP, or FoIP, sends and receives fax documents over an internet connection instead of a dedicated phone line, typically using the T.38 protocol to stay compatible with standard fax machines on the receiving end. Businesses move to an internet-based fax service because it keeps the same document format regulators expect while adding automatic delivery tracking, remote access, and centralized archiving that a physical fax machine cannot offer. For teams juggling paper records and shared machines, computer-based fax removes several everyday failure points at once.
As cybercriminals become more sophisticated in their hacking techniques, organizations in every industry have had to increase the amount of security surrounding document transfer. Many companies have chosen Fax over IP to handle this, as the computer based fax technology is known to be as secure as legacy fax systems.
The cloud fax market was valued at roughly 559 million dollars in 2025 and is projected to reach 1.34 billion dollars by 2033, a sign that businesses are choosing Fax over IP for reasons well beyond security, including delivery tracking, mobile access, and lower hardware costs.
However, FoIP is so much more than security. The benefits of FoIP boast multiple advantages for the modern business. But what are the benefits of FoIP, and how can administrators use them to their full potential? Let’s find out:
“Paper records don’t hold a candle to their digital cousins.”
1. Never lose an important fax again
Paper records may have worked for thousands of years, but they don’t hold a candle to their digital cousins. One of the main disadvantages of working with a legacy fax machine is the fact that the documents coming out of it are printed on one of the flimsiest materials known to man.
Paper faxes can be torn, crumpled or just plain lost in a massive influx of incoming messages. The problem with this is that faxes are only used these days for the most important materials, such as patient records or legal forms, because the technology is considered more secure than other options. Losing these kinds of documents – or even having them fall into the wrong hands – simply isn’t an option, which is why so many administrators are moving toward FoIP.
FoIP helps to ensure the delivery of important messages by tracking every incoming and outgoing fax, giving the time of delivery if the document goes through and an undeliverable alert if it doesn’t. What’s more, FoIP from FaxCore also utilizes an automatic archiving system. Fax archiving stores all incoming faxes in one location for later review, while also allowing administrators to use a search function to find the exact document they’re looking for. Never again will company officials have to waste time looking for a fax that was improperly filed.
2. Increased mobility
With the technology used to power mobile devices becoming cheaper and more advanced. more workers than ever before have the power of the Internet sitting in their pocket. Smartphones are great for enabling employees to get work done on the go. In fact, Gartner has estimated that 40 percent of large businesses in the U.S. have allowed staff members to use personal devices for work purposes.
With this massive migration to a more mobile work environment, legacy fax machines have once again become an annoyance. Workers must be present in the office to respond to these messages, rather than being able to do so at lunch or on the train into work, thereby decreasing productivity. FoIP solves this problem by allowing any device with an Internet connection the opportunity to read incoming documents anywhere in the world.
Modern employees get work done wherever they can.3. Nothing changes for your clients
One of the biggest problems about implementing new technology is that no one likes change. This is especially true for outside clients, who generally just have to deal with the changes made by their partners. This is yet another reason why FoIP is such an amazing innovation. This technology doesn’t require customers to change anything about how they send or receive faxes, which means implementing a FoIP solution won’t rock the boat or cause any major client-side problems during the transition.
Of course, all of these benefits and more are piled on top of the heightened security that FoIP can provide for businesses. FoIP is truly one of the best ways to securely and efficiently transfer documents, and organizations looking to do so should consider investing in this amazing technology.
Enhance enterprise communication, collaboration and compliance efforts with a proven FoIP solution from FaxCore. Contact FaxCore today to learn more about their ‘Partly-Cloudy’ fax solutions.
Fax Over IP Benefits: More Than Just Security FAQs:
What is fax over IP and how is it different from a traditional fax machine?
Fax over IP sends fax documents through an internet connection instead of a dedicated phone line, typically using the T.38 protocol to keep the transmission compatible with standard fax equipment. A traditional fax machine depends on phone infrastructure and paper output at each end, while FoIP works through software, so it can run from a computer, tablet, or shared inbox. The result is the same document delivery, without the maintenance cost of physical machines.
Does fax over IP still work as securely as a traditional fax line?
Yes. Fax over IP is generally considered as secure as a legacy phone-line fax when it is configured correctly, since the transmission itself can be encrypted end to end. The added benefit is that FoIP also produces a digital audit trail of every send and receive attempt, something a paper fax machine cannot generate on its own, which makes it easier to prove a document was delivered or to spot a failed transmission.
What are the main benefits of fax over IP besides security?
Beyond its security advantages, fax over IP automatically tracks delivery, confirming when a document arrives or flagging it as undeliverable, and archives every fax in a searchable digital record. It also frees employees from being tied to a single machine, since faxes can be sent and received from any device with an internet connection. For clients and partners, nothing about how they send or receive faxes has to change.
Can employees send and receive faxes from a mobile device with FoIP?
Yes. Because fax over IP runs through an internet connection rather than a phone line, employees can send and receive faxes from a laptop, tablet, or smartphone using their normal login credentials. This matters for distributed teams and any role that requires responding to documents outside a fixed office location, since no one has to wait until they are physically near a fax machine to read an incoming message.
Does switching to fax over IP require any changes for the people I send faxes to?
No. Fax over IP is designed to work behind the scenes, so external contacts do not need new software, a new fax number format, or any change to how they send a document. Recipients on a traditional fax line or another FoIP service receive the fax exactly as before. That compatibility is one reason FoIP is a low-friction upgrade for organizations that exchange faxes with many outside partners.
Is fax over IP more affordable than maintaining a fax machine?
Often, yes. Fax over IP removes the ongoing costs tied to a physical fax machine, including a dedicated phone line, paper, toner, and hardware repairs. Because FoIP runs on existing internet infrastructure and shared software, organizations can also scale usage up or down without buying additional machines, which is part of why the cloud fax market has continued to grow even as standalone fax hardware sales decline.
How does fax over IP prevent a fax from getting lost?
Fax over IP logs every incoming and outgoing transmission, recording the exact time of delivery when a fax goes through and generating an alert when it does not. Combined with automatic digital archiving, this means a document cannot simply be misplaced in a stack of paper or fall out of a machine’s memory. Administrators can search the archive directly instead of manually sorting through printed pages.
What protocol does fax over IP use to transmit documents?
Most fax over IP services use the T.38 protocol, which was built specifically to carry fax signals reliably over an IP network without the data loss that can affect a standard voice-over-IP call. Some providers also support fax relay through G.711, but T.38 is the more common standard because it is designed to preserve the timing and image quality a fax transmission needs to complete successfully.
