With the Voys app, you make calls through your smartphone's internet connection, either via 4G/5G or WiFi.
The network
With the Voys app, you make calls through your smartphone's internet connection, either via 4G/5G or WiFi. Using 4G/5G is strongly preferred for the best call quality, as WiFi is often simply less reliable.
Calling via WiFi
This might sound a bit strange, as many people are used to the idea that WiFi is the fastest and most reliable option. For watching videos, downloading photos, and similar activities, this is indeed true. But a phone call is different because it's a direct connection.
When your smartphone is connected to a WiFi network, the app automatically uses it. In most cases, this works fine, but sometimes it can cause issues with call quality. With a WiFi connection, calls are more likely to stutter, have delays, or drop completely. The app can't do anything about this. However, you can fix it by switching to 4G/5G.
This can happen even if you have a very fast and well-functioning WiFi network.
Turn off WiFi
We therefore recommend using the app with 4G/5G. If you notice that your call quality is poor, turn off your WiFi connection. The call will automatically switch to 4G. You can do this during an ongoing call, on both Android and iOS phones.
We understand that some customers lose audio when switching from WiFi to 4G/5G and vice versa. If this happens, turn on remote logging and use the feedback button in the app as explained below. This allows us to investigate what's causing the issue.