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Advantages of VoWiFi | disadvantages of VoWiFi, Voice over WiFi

This page covers advantages and disadvantages of VoWiFi (Voice over WiFi). It mentions benefits or advantages of VoWiFi and drawbacks or disadvantages of VoWiFi.

What is VoWiFi ( Voice over WiFi ) technology ?

As we know wifi network consists of wlan access points (APs) or router, server and end devices called stations (STAs) or clients. The voice calls can be made using wifi network are known as VoWiFi.

The voWifi system will have three modules viz. caller module, wifi router module and callee or receiver module. WiFi calling applications such as "JiO wifi calling" or "whatsapp" is needed to make voice call over wifi network.

VoWiFi, Voice over wifi

The figure depicts user#1 as caller and user#2 as callee. Caller opens app in its cell phone and dials callee. Once caller is connected with callee, he/she can start the voice communication. Here server and router take decision of users' reachability. Router module accepts request from caller and place a call. The callee module receives the call dialled by caller.

Benefits or advantages of VoWiFi

Following are the benefits or advantages of VoWiFi:
➨VoWiFi helps in decreasing 2G/3G radio network usage by offloading cellular bandwidth on wifi network.
➨It offers lower cost or no extra cost as it uses existing internet charges already paid by consumers. Users need not have to pay any airtime charges.
➨It can be used while in mobility like cell phones with basic primary resource as internet.
➨Being wireless in nature, network configuration and re-configuration processes are smooth and fast.
➨VoWiFi call or wifi calling can be made without any mobile cell tower signal availability. This will help users when no cellular signal or poor signal is available in some areas.
➨One can use existing phone number and there is no need for separate Jio pack or airtel pack.

Drawbacks or disadvantages of VoWiFi

Following are the drawbacks or disadvantages of VoWiFi:
➨WiFi networks are separate system than cellular networks such as GSM, LTE, 5G NR and so on. Voice traffic over wifi become less important when wifi networks are overloaded with data traffic. This drawback is visible in enterprise wifi networks.
➨Most of the users are using data service in Enterprise wifi network. Hence using wifi channels for voice calls will hamper existing data channel usage.
➨Wifi operates on unlicensed bands and hence it is subject to RF interference from other RF sources.
➨Maintenance of wifi networks is major concern as residential users are responsible for this service.
➨E-911 capability is not available in Voice over wifi (VoWiFi).
➨Also refer advantages and disadvantages of WiFi >> and advantages and disadvantages of voice over LTE or VoLTE >>.

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