Is there a way to set my default language for SMS service messages from AIS to English? I'm an AIS 3G pre-paid 1-2-Call customer.

you are not the only one, I am customer for many years with them, complying help nada, still receive there sms mess daily.

Never mind...Googled my own topic title and the first hit was this page:

http://www.ais.co.th/12call/en/change-language-service.html

Problem solved

Lots of other interesting 1-2-Call information and services in English on this page as well. I bookmarked it.