Introduction
Voice communication has evolved significantly over the past few decades. We have come a long way from the journey that began with landlines, which were once used to achieve faster and more seamless communication. Today we have reached a frontier that allows wireless calling through portable devices. In fact, you don’t always need a cellular network. Modern technologies, such as Wi-Fi calling and VoIP calling, allow users to stay connected through an internet connection, providing better network coverage and flexibility.
Wi-Fi and VoIP calling have gained immense traction in the global communication market. Although both calling options use the internet as a foundation for communication, they work differently in terms of their installation, features, usage, and global connectivity. However, understanding the differences will help you choose the right option for your communication requirements.
In this blog, let us understand VoIP and Wi-Fi calling, their differences, how each technology works, advantages, and limitations.
Let us explore one by one
What is VoIP Calling?
VoIP (Voice Over Internet Protocol) is a technology that allows you to make and receive calls through an internet connection from any device.
VoIP technology converts your analogue voice into digital data packets and transmits them over an internet connection. And, the recipient’s device converts digital data packets into analogue voice again. Most importantly, you don’t need a physical telephone line to make or receive calls.
Businesses use VoIP calling services as it majorly supports advanced communication features while reducing costs.
VoIP services can be used through:
- Smartphones
- IP phones
- Desktop
- Tablets
- Laptops
Some of the popular examples of VoIP services, include:
- Google Meet
- Skype
- Microsoft Teams
- Zoom
- Google Voice
What is Wi-Fi Calling?
Voice over Wi-Fi, also widely known as Wi-Fi calling, refers to making or receiving calls through a Wi-Fi connection when your mobile network connection is weak or unavailable. In fact, this feature has become a popular communication channel that doesn’t require a dedicated phone line or any other specific application.
Most smartphones have Wi-Fi calling as a built-in feature and can be easily activated with just a single toggle button. Unlike VoIP calling, Wi-Fi calling use your existing mobile number and integrates with it directly.
For example:
If you are inside a building and the mobile network is poor, but you have access to Wi-Fi, your phone automatically routes your call through the Wi-Fi network while still retaining the existing mobile network.
Differences between VoIP and Wi-Fi Calling
| Features | VoIP | Wi-Fi |
| Internet required | Yes | Yes (Wi-Fi connection) |
| SIM card required | No | Yes |
| Mobile number | No | Yes |
| Carrier dependent | No | Yes |
| Requires separate application | Yes | No |
| Multi-device access | Yes | No |
| Video calling | Supported | Voice calls only |
| Call quality control | Provides more control | Managed by carrier network service provider |
| Global accessibility | Yes | Depends on carrier plan |
| Advanced features | Applicable, such as voicemail, IVR, call routing | Basic voice communication and texting |
| Suitable for | Businesses communication and working professionals | Regular mobile users |
| Cost | Reduced communication costs | No extra cost for domestic calls, but international calling charges are applicable |
| Emergency call support | Not supported | Limited |
| Number flexibility | Virtual or regional or masked numbers | Fixed to a mobile number |
| Security | End-to-end data encryption is provided by the service providers | Secured when using a carrier network, but unsafe when using public networks |
Benefits of VoIP Calling
1. Cost-effective
VoIP calls are generally more affordable than traditional landlines, particularly for international calls.
2. Work from Anywhere
VoIP services can be accessed from various devices, such as smartphones, laptops, or desktops, providing more flexibility to work from anywhere.
3. Advanced Features
VoIP platforms provide advanced features such as voicemail-to-email, virtual receptionists, call forwarding, video calling and more, making it suitable for modern workplaces.
4. Scalability
VoIP systems can be easily either scaled up or down based on your company’s changing communication needs.
Limitations of VoIP Calling
1. Internet dependency
VoIP depends on a stable internet connection, and this becomes challenging in the areas with poor internet coverage or during internet outages.
2. Emergency call limitations
VoIP numbers are portable and virtual, emergency services can not track your physical location accurately.
3. Technical complexity
Installing and configuring VoIP systems seems more complex and requires expert support.
Benefits of Wi-Fi Calling
1. Better Indoor Coverage
Many offices and building basements often have weak cellular signals. Thus, having Wi-Fi calling option, lets you place and receive calls using a Wi-Fi network, ensuring better connectivity.
2. Use your existing phone number
The best part of Wi-Fi calling is that you don’t need a separate phone number. Your friends, family, and colleagues can reach you using your regular number.
3. No Additional Application Required
Unlike VoIP calling services, Wi-Fi calling doesn’t require any additional application as it is integrated into your smartphone. If your device supports it, enable the Wi-Fi calling feature in your phone settings.
Limitations of Wi-Fi Calling
1. Call Quality Diminishes
Call quality reduces as soon as you move farther away from the router.
2. Limited Features
Wi-Fi calling doesn’t have access to specialized business features.
3. Security Risks
If you are using public Wi-Fi or an insecure network, Wi-Fi calling is susceptible to myriad security risks.
4. Limited Device Compatibility
Not all phones support Wi-Fi calling (particularly older phone models)
VoIP vs Wi-Fi Calling: Which One Should You Choose?
The right choice between VoIP and Wi-Fi calling entirely depends on your communication requirements.
Choose VoIP calling services if you:
- Make international calls frequently
- Need advanced calling features
- Want to access calling from multiple devices
- Require collaboration and video conferencing tools
- Manage a remote working team
Choose Wi-Fi Calling if you:
- Prefer to use your existing mobile number
- Need a simple alternative for calling without additional setup
- Want better call quality in areas with weak cellular coverage
- Mainly make personal calls rather than business calls
Conclusion
Both VoIP and Wi-Fi calling offers reliable alternative ways of communication to traditional cellular calling, each serving different purposes.
If you prioritize making domestic calls with better mobile coverage, Wi-Fi calling is an ideal option to consider as it uses your existing mobile number. On the other hand, if you need flexible and cost-effective communication both domestic and international with advanced calling features for personal and business usage, VoIP calling serves as a comprehensive solution.
After assessing all the essential factors involved in Wi-Fi and VoIP calling, you can choose the one that meets your calling requirements by considering your location, budget, and calling preferences.
