Calls from abroad

Call the hotline 0800 800 800.

0800 800 800 does not work from abroad.

24-hour hotline from abroad: +41 62 286 12 12 (corresponding fees apply)

You can also try it via chat:

https://www.swisscom.ch/de/privatkunden/hilfe/internaltest/hilfe/mobile.html#

(On the far right via the red CONTACT button)

Do you have different network providers to choose from in your location (which country?)? If so, try others!

Do you choose the numbers in international format?

+4179 etc

Try it manually and not from the contact list and if you have the advanced calling functions in there, then take them out just to try.

Good luck