Use an SMS gateway that doesn't support UTF-8 encoding

Is it possible to use an SMS gateway that doesn’t support utf-8 encoding?

Answer

If receiving SMS gateway supports for example latin encoding and we only support utf-8 you need to use this kind of workaround:

Example SMS message: kertakäyttösalasanasi

SMS gateway expects ä as %E4 and ö as %F6 so we configure in uas.properties:

SMS_TEXT = {0} on kertak\u0025E4ytt\u0025F6salasanasi

Result depends on the receiving gateway.