Sunrise Prepaid Unlimited – How long can I make unlimited calls, surf and send SMS messages?
Your Sunrise Prepaid Unlimited plan is valid for 24 hours and is activated as soon as you use data, make a call or send an SMS. You will not incur any additional charges during those next 24 hours. Only international calls, international roaming, and special numbers (090x, 1818, etc.) will result in additional charges.
All information about Sunrise Prepaid Unlimited is available here.