With the telephony function, you can make and receive calls via your Swisscom fixed network number using the Home App. All you need is an Internet connection and the Home App.
Here's how you can switch the telephony function on and off as you like in the Home App:
1. Switch to the "Telephony" section in the Home app
2. Select the "Settings" tab (Gear-Icon)
3. Set the "Telephony function" switch to on or off according to your need
If you do not want to receive your landline calls on the go via your Home App, set the switch at "Only use at home" to "On".