MTN Voice over WiFi (VoWiFi): How to Make Calls Without Network in 2025
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MTN Voice over WiFi (VoWiFi): How to Make Calls Without Network in 2025 |
Are you stuck in an area with poor MTN mobile signal but have Wi-Fi? Thanks to MTN’s Voice over WiFi (VoWiFi) service in 2025, you can now make and receive calls without mobile network coverage, using any Wi-Fi connection!
This guide explains how VoWiFi works, compatible phones, activation codes, benefits, and troubleshooting tips.
What is MTN VoWiFi?
VoWiFi (Voice over WiFi), also called Wi-Fi Calling, allows you to use a Wi-Fi network to make phone calls — even when there's no MTN network signal.
No SIM signal? No problem — just connect to Wi-Fi and make calls as usual!
MTN introduced VoWiFi in Nigeria to enhance call coverage indoors and in remote areas where traditional signal is weak.
Benefits of MTN VoWiFi in 2025
- Make/receive calls without cellular network
- Works anywhere with stable Wi-Fi (home, office, abroad)
- HD call quality even in low-signal zones
- No extra cost — calls are billed from your regular airtime or bundles
- Supports SMS over WiFi too (on supported devices)
Compatible Devices for MTN VoWiFi
To use VoWiFi, your smartphone must support the feature and have the latest software. Here are popular brands that support VoWiFi on MTN in 2025:
Samsung (Latest firmware)
- Galaxy S21/S22/S23/S24 series
- Galaxy A52/A72, A54, A74
- Galaxy Note 20, Z Fold/Flip
iPhones
- iPhone 8 and newer (with iOS 15+)
- Go to Settings > Phone > Wi-Fi Calling
Xiaomi, Oppo, Vivo, Nokia
- Ensure VoWiFi is enabled in SIM settings
You may need to update your carrier settings or enable the feature manually.
How to Activate MTN VoWiFi on Your Phone
Step-by-Step (Android):
- Connect your phone to a stable Wi-Fi network
- Go to Settings > Connections > Mobile Network
- Tap Wi-Fi Calling and enable it
- Restart your phone if needed
Step-by-Step (iPhone):
- Go to Settings > Phone > Wi-Fi Calling
- Enable Wi-Fi Calling on This iPhone
- Confirm your emergency address (if required)
USSD Code to Confirm Activation:
MTN may send an SMS once WiFi calling is active. If unsure, dial *#*#4636#*#*
(on Android) and check IMS registration status.
MTN VoWiFi While Abroad (Roaming with Wi-Fi)
If you’re overseas and connected to Wi-Fi, you can call Nigeria using VoWiFi without roaming charges — just make sure your line has airtime or bundles.
It’s a perfect hack for Nigerians abroad who want to avoid international roaming fees.
VoWiFi Not Working? Try These Fixes
Issue | Fix |
---|---|
VoWiFi option not visible | Update your phone software and carrier settings |
WiFi calling not activating | Try another Wi-Fi or restart your phone |
Call drops on VoWiFi | Move closer to the router for stronger Wi-Fi |
Not supported on your SIM | Visit MTN office to update to a VoWiFi-enabled SIM |
MTN VoWiFi in 2025 is a game-changer for Nigerians who face poor indoor signal or travel frequently. With a supported phone and strong Wi-Fi, you’ll never miss important calls again.
Simply enable the feature, connect to Wi-Fi, and enjoy clear, reliable calls even in network-dead zones.
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