With the rise of remote work and high-quality communication, Wi-Fi calling has become more popular than ever. Its appeal is perfectly understandable: businesses want a reliable and affordable solution to stay connected to their employees, partners, and customers.
The best part about Wi-Fi calling is that you can enjoy it on both Android and iOS without needing any additional apps, infrastructure, or help from the carrier. So, whenever you are around your Wi-Fi router, you can make crisp calls to anyone.
What is Wi-Fi Calling?
WiFi calling is the process of connecting with someone through your WiFi instead of the usual carrier network. This isn't any new connection; we're referring to the regular WiFi connection you have at the office or home, or even a hotspot that you're sharing with someone. WiFi calling is just like normal calls, as you do not see any prompts, and neither does your phone ask for any special permissions.
You simply dial the number on your phone and the call goes through. The only difference is that now you're using the WiFi, not the cellular signals and credit.
How Does Wi-Fi Calling Work?
WiFi calling doesn't appear very different from regular calls using a carrier network, but things are different below the surface.
When you connect on a WiFi call with someone, your voice is converted into data bytes that are transmitted over the internet to the carrier's servers. From there, the call is routed to the recipient where they receive it on a mobile network or another WiFi connection.
This process uses Voice over International Protocol (VoIP) technology, which is also used by apps like WhatsApp and Skype. The major difference here is that WiFi calling is integrated in your phone's native dialer and messaging apps. You do not need to install any new software or app to enjoy WiFi calling.
While Wi-Fi calling has become popular only recently, VoIP for business has been around for quite a while. As you dial the number on your phone, it checks whether the carrier or the Wi-Fi signals are stronger. If the carrier signals are weaker, the phone automatically switches to Wi-Fi without prompting you for an action. This transition from one form of communication to another ensures you always enjoy high-quality calls without wasting time on prompts.

Source: Market Data Forecast
Since the start of the COVID-19 pandemic, the VoIP market has grown by 212% because of its benefits for remote work. This remarkable growth demonstrates the increasing importance of Wi-Fi calling in modern business communications.
7 Key Benefits of Wi-Fi Calling
Since the start of the COVID-19 pandemic, the VoIP market has grown by 212% because of its benefits for remote work. Let's explore these advantages.
1. Improved Call Quality
One of the most notable benefits of Wi-Fi calling is the instant improvement in call quality. Unlike traditional cellular calls, which often suffer from dropped signals or other interferences, Wi-Fi calling leverages stable internet connections to connect you smoothly any time of the day.
2. Cost Efficiency
Wi-Fi calling is much more affordable than traditional cellular communication, especially for businesses that make frequent international or long-distance calls. Since it uses the internet to place calls, users can bypass the high fees associated with roaming charges and international calling rates.

Source: nextiva
3. Extended Coverage
Another key advantage of Wi-Fi calling is the extended coverage in many places. In areas where network coverage is patchy at best, Wi-Fi calling ensures businesses stay connected as long as they have a decent internet connection. This feature comes in really handy in the countryside, where cellular towers are scarce.
It is equally beneficial in heavily populated urban areas where network congestion can lead to dropped calls or poor voice quality. Additionally, Wi-Fi calling is compatible with tablets and laptops, offering users excellent flexibility to make calls across multiple devices.
4. Seamless Device Integration
Wi-Fi calling is designed to work seamlessly with most modern smartphones and other devices. Unlike some communication apps that require separate installation and subscriptions, Wi-Fi calling is usually integrated into the native functionality of your smartphone. No need to go through the downloading and installation process of different apps or invest in extra hardware.
5. Better Connectivity During Emergencies
Wi-Fi calling can be a lifesaver in emergency situations. Cellular networks often become damaged or congested during power outages and natural disasters. Wi-Fi calling serves as a reliable backup to ensure that users can still reach out to rescue services.
6. Business Benefits
Wi-Fi calling can help businesses improve efficiency and cut down on costs. Around 67% of remote employees say they are more productive using VoIP, a testament to its effectiveness.

Source: Unity Connect
7. Enhanced Security and Privacy
Wi-Fi calling uses advanced encryption technologies to ensure secure communication. It protects sensitive data from unauthorized access and makes it safer for both personal and professional calls. When you have a combination of Wi-Fi calling and the best virtual business phone system, you have peace of mind knowing the important business conversation is secure.

Source: fitsmallbusiness
Why Do Businesses Prefer Wi-Fi Calling?
The most incredible aspect of Wi-Fi calling is that you can make a call as long as you are connected to the internet. It is that simple – no extra charges, apps, or anything else is needed. Although you must pay for the internet connection, that is well understood, and you use that internet for professional purposes anyway.
Calling services on SIM cards require you to spend a hefty amount on call packages. Those who communicate internationally every day know how expensive it can become. Moreover, the call quality through Wi-Fi is often far superior to its cellular counterpart, making it a preferred option for many.
How to Enable Wi-Fi Calling on Android?
Step 1: Check Carrier Compatibility
Before you attempt Wi-Fi calling, make sure that your carrier supports it. Most major carrier companies support Wi-Fi calling, but it can vary depending on your plans or location.
Step 2: Visit the 'Settings' App
Visit the Settings app on your phone and click Network and Internet.

Step 3: Open Calls and Internet
Once you open the settings, the exact way to enable the Wi-Fi calling option depends upon your smartphone and the Android flavor it is using. Usually, you'll find an option named Calls and SMS or something similar. Click on it to proceed.

Step 4: Check Wi-Fi Calling
You'll see a Wi-Fi calling option at the bottom. Click the network below it.

Step 5: Turn On Wi-Fi Calling
By clicking the Use Wi-Fi calling toggle, turn on Wi-Fi calling.

Step 6: Configure the Settings
You can also configure the settings after enabling Wi-Fi calling. Here, you can select your preferred mode of calling: Wi-Fi or mobile network. If you select Wi-Fi, your smartphone will automatically use Wi-Fi for calls whenever available.
Step 7: Test Wi-Fi Calling
Once you have finished setting up Wi-Fi calling, it is time to put the system to the test. If the Wi-Fi calls don't go through, make sure your Wi-Fi is working properly or restart your device. If the problem persists, resetting network settings might help.
How to Activate Wi-Fi Calling on an iPhone?
Step 1: Go to Settings
Visit the Settings app and find Phone.
Step 2: Find Wi-Fi Calling
Click the Wi-Fi Calling option.
Step 3: Enable Wi-Fi Calling
You'll see a toggle, and clicking it will turn Wi-Fi Calling on. After doing it, a query message will pop up, indicating that you need to click Enable. With that, you are done. You can now make calls with the iPhone through your Wi-Fi connection.

Why is the Call Dropping on Wi-Fi? Troubleshooting Ideas
1. Overloaded Network
Wi-Fi networks are designed to handle a limited number of devices simultaneously, known as bandwidth in technical language. It limits the bandwidth if multiple devices send or receive data through the same Wi-Fi network. As a result, the Wi-Fi calls will drop completely or lose their quality.
Tip: It is better to reduce the load on the network or make calls when the Wi-Fi is less congested. If not, you'll need to rely on the carrier signals.
2. Limited Wi-Fi Coverage
There is a good chance you already know that Wi-Fi routers have a limited coverage area. At best, it can cover 150 ft on the 2.4 GHz frequency. As the frequency gets higher, the coverage area shrinks.
Tip: Move closer to the router to stay within the coverage range.
3. Calls Switching Between Wi-Fi and Cellular
Another issue many users face is that calls keep switching between Wi-Fi and cellular networks. Usually, this happens when the phone detects a stronger cellular signal and vice versa. Sometimes, you have powerful signals from both networks, so the phone keeps switching between them. It can cause glitches during the call or even drops.
Tip: You have two options here:
- Turn off Wi-Fi calling completely to rely on the cellular signal
- Turn on airplane mode and use Wi-Fi to call entirely
4. Outdated OS
An outdated OS is one reason your Wi-Fi calling might suffer from lags and drops. Carriers always advise that you use phones with the latest OS to benefit from all the system updates.
Tip: Update your phone to the latest version of the OS.
When Wi-Fi calling is paired with a dedicated virtual business number, it becomes the perfect combination. Instead of using your personal number for business communications, a dedicated virtual number from Ringtree can handle everything on the business end at unbeatable rates. It's not just about the low price either: you get to choose from 300+ US and Canada area codes, have a 24/7 AI auto attendant, advance call forwarding, and much more.
Frequently Asked Questions
Is Wi-Fi calling free of charge?
Usually, Wi-Fi calling is free, but you've to pay for the monthly fee for the Wi-Fi service. It is an ideal option for businesses that communicate across borders and do not want to pay really high international calling rates.
What does Wi-Fi calling do?
Wi-Fi calling, just like traditional calling, lets you connect with others using the Wi-Fi internet. To achieve high-quality calling and texting on Wi-Fi, make sure your internet connection is robust.
Does Wi-Fi calling use cellular data?
No, Wi-Fi calling doesn't use the data from your cellular plan. When you make a Wi-Fi call, you are connected to the Wi-Fi network and that is where your data is consumed.
About the Author
Manny S. is a business technology specialist with over a decade of experience helping small businesses. He specializes in virtual phone solutions and cloud-based business tools. When he's not writing blogs or writing code, you'll probably find him walking his dogs or playing with analog synthesizers.
