Hi!
@darkonc point was that the test is only for +49...
But unless you have to call any other number by prefixing them with +49 this will never ever cause any problem...
In North America long distance number are/were called by prefixing them with 1 which also happens to be the "country" *** code but it doesn't look like the same situation could ever happen in Germany, you would never call another german number by prefixing it with +49...
Have a nice day!
Nick
*** A "country" code which is shared by many countries which use NANPA (North American Numbering Plan Administration...