How to Wireless Fax: Send Faxes from Your Phone or Computer

To send a fax wirelessly, you use an online fax service or a mobile app to transmit documents over the internet instead of a traditional phone line. Because smartphones have no built-in fax capability, you must install a third-party app or use a web-based service to send and receive faxes from your phone, tablet, or computer.

What is wireless faxing?

Wireless faxing is the method of sending and receiving faxes over the internet via an online service or app rather than through a physical telephone line. It eliminates the need for a dedicated fax machine and a wired phone connection, allowing you to transmit documents digitally from any device with internet access.

What you need to wireless fax

To send a wireless fax, you need a smartphone, tablet, or computer with a stable internet connection. You also need an account with an online fax service or a fax app, such as eFax, that handles the transmission over the internet. No phone line, fax machine, or special hardware is required. Check the user manual or manufacturer's website to confirm if your device is compatible with wireless connectivity. Disconnect your wireless fax machine from the Wi-Fi network when not in use to conserve power and ensure network security.

How to wireless fax from an iPhone

Because the iPhone has no built-in faxing feature, you must use a third-party fax app from the App Store. The exact steps vary by app, but the general process is as follows:

Download a fax app from the App Store (for example, eFax, Fax from iPhone, Faxify, or FaxSwift).
Create an account within the app or sign in if you already have one.
Select the option to compose or send a new fax.
Attach the document you want to fax from your device’s storage, camera, or cloud services.
Enter the recipient’s fax number, including the country code if needed.
Send the fax. The app will transmit the document over the internet.

Note that each app may have slightly different button labels or menu paths, so refer to the app’s instructions for exact steps.

How to wireless fax from an Android phone

Android phones also lack built-in fax capabilities, so you need to install a third-party app from Google Play. The process is similar to the iPhone method:

Download a fax app from Google Play (for example, MetroFax).
Sign up for an account or log in to your existing one.
Tap the option to send a fax.
Add your file from your phone’s storage, camera, or a cloud service.
Enter the recipient’s fax number.
Send the fax. The app will convert and transmit the document over the internet.

As with iPhone apps, the exact interface and button names vary by app, but the core steps remain the same.

How to wireless fax from your computer

You can send a wireless fax from your computer using an online fax service’s web portal. Many services, including eFax, offer this option. The general steps are:

Upload the document you want to fax (common formats like PDF are typically supported).
Enter the recipient’s fax number in the designated field.
Click send. The service transmits the document over the internet.

An alternative method is email-to-fax. With this approach, you compose an email, attach the document, and send it to an address provided by your fax service (for example, recipientnumber@yourfaxservice.com). The service converts the email into a fax and delivers it to the recipient’s fax machine. After sending, the machine may print a confirmation page with date, time, and recipient's fax number.

Receiving a wireless fax

When someone sends you a fax wirelessly, how you receive it depends on the service you chose. Most online fax services deliver incoming faxes as PDF attachments to your email inbox. Some fax apps also have a built-in inbox where received faxes appear as digital files, which you can view, download, or forward directly from the app. Ensure the wireless fax machine has paper loaded and is in readiness mode to receive faxes.

Troubleshooting wireless fax problems

If your fax fails to send, first check your internet connection, a weak or unstable connection can interrupt the transmission. Also verify that the recipient’s fax number is correct, including any necessary country or area codes. If the document quality is poor, scan it clearly at a higher resolution and save it as a PDF before sending. If the fax app crashes or freezes, try updating the app to the latest version or reinstalling it from the app store. Keep the wireless fax machine within range of the Wi-Fi router for a stronger signal and improved reliability. Check for firmware updates for your fax machine to ensure optimal performance. Interference from cordless phones, microwave ovens, and other electronic devices can cause disconnections or fax quality issues. Try switching to a different wireless channel to minimize interference from other devices. Insufficient bandwidth from sharing the network with multiple devices or a slow internet connection can cause transmission issues. Physical obstructions like paper jams or low ink/toner levels can cause incomplete fax transmissions.

Frequently Asked Questions

Can I fax without a phone line?

Yes. Wireless faxing uses the internet instead of a telephone line, so you can send and receive faxes from any device with an internet connection, no phone line needed.

Is wireless faxing secure?

Wireless faxing can be secure when you use a reputable service that encrypts your documents during transmission. Many online fax providers use TLS or other encryption protocols to protect your data, similar to secure email or web traffic.

Do I need a special printer?

No. You do not need a printer to send a wireless fax. If you want to print a received fax, you can use any printer connected to your computer or mobile device. Some users also combine wireless faxing with a wireless printer setup for convenience, but it is not required.

Can I use my existing fax number?

Many online fax services allow you to port your existing fax number to their platform. Check with your chosen provider to see if number porting is supported and what steps are needed to transfer your number.