ctions. For example, in many of the listed problematic cases signaling over- load risk can be reduced by adding long enough random delay for smart objects' actions, and thus spreading massive events across time more widely (and definitely avoid instan- taneous communications of many smart objects). Signaling can also be decreased by idle smart objects turning off their cellular modem - if they are not waiting for inbound com- munications. The 3GPP 23.843 also proposes some solutions, such as optimizations to Future of IPv6 in 3GPP Networks periodic area update signaling, new status codes to indicate network overload to UEs and communicable back-off timers for retries, signaling load reductions by smarter network configuration, and other tweaks and improvements. The work to find solutions to signaling problems is ongoing, and the implications of the IoT are being taken into account [95]. Subscriptions Will Increase With the introduction of the IoT and the many types of smart objects that will make use of the 3GPP access, the network operators will consequently have a significantly larger installed base of connected UEs, and there will be an increased number of subscrip- tions and UEs per subscriber. This can have implications for subscriber management, but probably this is one of the positive problems. Privacy and Security Issues May Arise Until now, the emergency services have been perhaps the most critical service for the commercial 3GPP networks, and it has been of utmost importance to have those services working in all conditions. The ordinary use of handsets by people: voice calls, messaging, and Internet use, have been less critical, although of course very high availability is expected there as well. With the emergence of IoT and the resulting use of sensors to monitor, and actuators to modify, the real world, the importance of service availability, security, and privacy are on the rise. The smart objects are producing data that has high privacy requirements, and the actuators may be driving systems where s