Wi-Fi Calling improves your mobile phone reception in enclosed spaces by using a WLAN connection
- Better reception in enclosed spaces
- Make calls and send SMS/MMS messages as usual without having to download another app (Whatsapp, for example)
- No additional basic fees
Please note: Phone services (calls, SMS/MMS) are billed according to your current rate. Currently, Wi-Fi Calling can only be used in WLAN networks in Switzerland (no roaming available).
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More information about the Sunrise network
Sunrise mobile network app, Network coverage, Network comparison and HD Voice