def phone_numbers(self):
        """
        Access the phone_numbers

        :returns: twilio.rest.trunking.v1.trunk.phone_number.PhoneNumberList
        :rtype: twilio.rest.trunking.v1.trunk.phone_number.PhoneNumberList
        """
        if self._phone_numbers is None:
            self._phone_numbers = PhoneNumberList(self._version, trunk_sid=self._solution['sid'], )
        return self._phone_numbers
Access the phone_numbers

        :returns: twilio.rest.trunking.v1.trunk.phone_number.PhoneNumberList
        :rtype: twilio.rest.trunking.v1.trunk.phone_number.PhoneNumberList