Today, mobile network operators are rapidly evolving their core networks towards an all-IP infrastructure for both voice and data services. In addition, all internal and external communications between 3GPP elements will soon be based on IPv6. But also devices evolve and they require new architectures.
This market is often hard to predict, and some vendors’ decisions significantly impact operators’ evolutionary progress and speed. Just imagine device manufacturers adding VoLTE capability to the next version of their popular product, the push to provide SIP functions and the corresponding PCRF interfaces could pose a real challenge.
These exciting new developments influence the control plane, requiring authentication and policy control elements that are reliable and robust, as well as flexible and lean.