Get step-by-step help from Smart Support.
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If you cannot connect to the mobile network, you can use WiFi Calling to make calls via the WLAN.
Get step-by-step help from Smart Support.
If you cannot connect to the mobile network, you can use WiFi Calling to make calls via the WLAN.
Switch your mobile off and back on again.
Remove the SIM card and put it back in.
Install the latest software update.
In settings, change the network mode (e.g. activate LTE).
Reset the network settings (NB: this deletes all data).
Unable to make calls abroad?
Ensure that you include the correct country code and remove the block on international calls in My Swisscom(opens in new tab).
Problems with reception are often the result of limited or no network coverage. Check the coverage at your location on the network coverage map.
Know more together: Our community with over 10,000 active users will be happy to support you.