Comment 1 for bug 1504333

Ha, looking at the code, the phone number is validated with this regex:

phone_digits_re = re.compile(r'^\+?(\d|\ |\.|\(\d+\))*$')

so this would be valid and preserves all the country and area code information:

+1 (123) 456 7890

still, without any indication that spaces, parentheses and + are valid but hyphens are not, it's a bit hard to guess.