def answers(self, other):
        """DEV: true if self is an answer from other"""
        if other.__class__ == self.__class__:
            return (other.service + 0x40) == self.service or \
                   (self.service == 0x7f and
                    self.request_service_id == other.service)
        return False
DEV: true if self is an answer from other