class ReeNumber::NumberToPhone

def call(number, **opts)
  options = DEFAULTS.merge(opts)
  str = country_code(options[:country_code], options[:delimiter]).dup
  str << convert_to_phone_number(
    number.to_s.strip,
    options[:delimiter],
    options[:area_code],
    options[:pattern]
  )
  str << phone_extension(options[:extension]) if options[:extension]
  str
end