bridge club alert rules internationally
I have played extensively in clubs in the US and Switzerland, and occasionally in other countries. Bidding boxes are now in almost universal use. Alert rules vary by country, and are substantially different from what you are used to in the ACBL. Fortunately most are simpler than the ACBL's. The club directors I met in Switzerland spoke excellent English -- I recommend asking. Be sure to inquire about Stop Card use as well.

The Swiss Bridge Federation (FSB) site is http://www.swiss-bridge.ch/ but I did not spot anything about alert rules.