def answers(self, other):
        """In CCP, the payload of a DTO packet is dependent on the cmd field
        of a corresponding CRO packet. Two packets correspond, if there
        ctr field is equal. If answers detect the corresponding CRO, it will
        interpret the payload of a DTO with the correct class. In CCP, there is
        no other way, to determine the class of a DTO payload. Since answers is
        called on sr and sr1, this modification of the original answers
        implementation will give a better user experience. """
        if not hasattr(other, "ctr"):
            return 0
        if self.ctr != other.ctr:
            return 0
        if not hasattr(other, "cmd"):
            return 0

        new_pl_cls = self.get_dto_cls(other.cmd)
        if self.payload_cls != new_pl_cls and \
                self.payload_cls == DEFAULT_DTO:
            data = bytes(self.load)
            self.remove_payload()
            self.add_payload(new_pl_cls(data))
            self.payload_cls = new_pl_cls
        return 1
In CCP, the payload of a DTO packet is dependent on the cmd field
        of a corresponding CRO packet. Two packets correspond, if there
        ctr field is equal. If answers detect the corresponding CRO, it will
        interpret the payload of a DTO with the correct class. In CCP, there is
        no other way, to determine the class of a DTO payload. Since answers is
        called on sr and sr1, this modification of the original answers
        implementation will give a better user experience.