Does WiFi calling drain battery?

Wifi calling does not drain the battery because it uses small amount of power. However leaving it on without using it will use energy. Wifi uses less than cell data.

How Does WiFi calling work?

WiFi calling works on the principle of Voice over Internet Protocol (VoIP). In other words, call voices are transferred via an internet connection. It is an alternative to cellular and scratch card calls where you have no money to buy such services regularly. WiFi calls are supported by wireless routers that extend the call range more than 150 feet of a building. Calls via WiFi can be configured successfully if both parties have correct protocols that can reach each other.

Can you leave Wi-Fi on all the time?

Yes, it is okay to leave WiFi on all the time as long as you are not counting on electricity bills and it is secure with passwords as WiFi routers are designed to be kept on. Routers are kept at a fixed point, meaning they shouldn’t move anyhow to secure the signal getting lost. But this doesn’t mean if you power it off, the signal will be tempered. Choosing to keep the WiFi on all the time is not bad, but you have to do some check-ups for the safety of the signal. For example, when the router is left running for an extended period, the internet connectivity may be interrupted. Therefore you have to reboot the router most of the time to avoid internet connection issues.

But keeping your WiFi router connected leads to high power consumption, which is not economical. Still, letting your WiFi on at periods that your devices are not in use could put some risks to the devices. For example, you may forget to turn off the WiFi connection on your phone, leading to battery drainage.

Disadvantages of wifi calling

While wifi calling is essential and advantageous, especially where is cellular network is poor, it has downsides.

Weak signal strength

Wifi calling can be efficient, but in overcrowded places like airports, stadiums, universities, and hotels, wifi connections are likely to delay. There will be slower data speeds with the overloaded networks because of bandwidth sharing amongst several people around. In addition, inadequate signal strength can lead to poor voice quality and dropped calls.

Some devices do not support wifi.

While wifi calling can be efficient, not all devices support it. Therefore, you must have a device with a built-in wifi calling ability for you to use wifi calling.

Restrictions on international calls

There are restrictions on international calls. Like when traveling abroad, major carriers only support calls to the United States and not to other countries. To check on this, check with your specific carriers.

Does wifi use a lot of battery power?

Unlike most allegations that wifi can consume more battery power, wifi does not use a lot of energy. Generally, when you compare wifi to cellular data in terms of power consumption, wifi is more power-saving than cellular. However, not all wifi connections are power-saving; some consume a lot of power like the public wifi as it serves a lot of people hence less power-saving benefits.

Wifi uses 1250 mJoule and cell data uses 2400 mJoule of energy.


Moreover, using weak wifi can drain battery power because they will need to use more system resources to find and maintain the connection. To prevent this draining, it advisable to disable redundant apps and processes and increase the wifi connection by using extenders or moving close to help alleviate the problem.

While the wifi does not drain any battery, leaving it on without using it will drain the battery more because the phone will be looking for access points when it is not supposed to, so it is double-edged. Generally, wifi can consume less battery power than the cellular network unless the network signal is weak and the wifi is left on without being used.

What is the purpose of wifi calling

Wifi calling is a voice service that allows users to receive and make calls over a wireless network connection. Mobile phone users, especially smartphones, use wifi calling to text or talk on their smartphones from areas with poor cellular phone network signals. This depends on IP technology that connects calls via the internet rather than an internet tower. If you live in an area out of range of your network’s coverage, wifi calling acts as the only final solution for connectivity. When making a WIFI call, it is like placing a regular call without using an app. So, what is the purpose of wifi calling

Wifi calling lets users make voice calls over the wifi instead of using cellular data.

To offer expanded indoor coverage.

Wifi calling makes it easy to text or call from even areas with a poor cellular network connection. With it, you can text from anywhere without network restrictions. For instance, you can call from indoors, underground, or even rooftops where in most cases, powerful cellular network signal does not reach.

To enable international calling or texting using a phone number

Wifi calling allows users to call via their phone numbers. It can be used to make calls back to the United States from almost all foreign countries as long as there’s wifi.

To make VoIP calls like regular calls.

Wifi calling makes it possible to make voice and video calls using your home number. Every call made through wifi appears on the regular phone history and dialer.

Generally, wifi calling offers a seamless, hassle-free, and free last-mile connectivity solution for expanding indoor network coverage to dead cellular points where the transmitter’s tower signal does not reach.

Apart from WiFi being good to provide high-quality calling, it has several advantages, although it is associated with battery power draining. There are devices in the room that need a 24/7 WiFi supply, and if you power off the WiFi, it means they won’t work as required. Keeping WiFi on all the time is a benefit to connecting calls instantly and preventing them from damages. Turning off your router frequently can lead to its lifespan shortening.