Created German localization file

I created this localization file, but I would appriciate if someone looked it over once or twice. Something else that I noticed, there was a line about requiring 10 digit phone numbers. I know that at least in Germany, and probably most of the rest of Europe, there is no standard length for phone numbers (I have seen everything from 5 to 12 digits). Is this restricting SMS messages to N. American phone numbers, or is there some other way to validate global phone numbers?