The minimum contract duration for the mobile subscription is 24 months. The discount on the basic fee for the mobile subscription is valid for 24 months, after which the subscription will be charged at the normal price. You receive a discount on your device. When switching to a different subscription during the minimum contract duration, the monthly discount on the basic fee will be forfeited, even in the event of a subsequent switch back to a subscription that is eligible for the discount.  

ETF explanation EN: If the subscription is canceled before the minimum contract duration is reached, the customer must pay the basic monthly fees for the subscription up to the end of the minimum contract duration, plus a handling fee. In addition, the customer will be charged the value of the gift in the amount of CHF 360.- The customer will be required to pay both amounts right away.