VoIMS – IMS and 5G


This post is getting a bit rusty over the time. I plan to create some new stuff. Meanwhile I’d recommend to check GSMA IMS Profile for Voice, Video and Messaging over 5GS. And for those who want to know more 3GPP TR 23.700-10 Study on enhanced IMS to 5GC integration.

Maybe you have already heard about some features as Dynamical Network Slicing, CloudRAN, Network-as-a-Services, …  Some basic 5G principals we’ll briefly discussed also in this post. However my question is: What will be the change from the real-time communication point of view? What will be the 5G calling look like? Is the IMS (IP Multimedia Services, don’t confuse with International Microwave Symposium) to stay in the operators’ networks?

5G Deployments Sep, 2019 by 5G Americas

Seems that at the first stage the change will be less dramatic than when we introduced 4G. 4G was in many ways a revolution, whereas 5G is “only” an evolution. In fact 4G and 5G, at least in the beginning, will coexist and complement one each other. Still 5G will have a big impact on our existing technologies and the way we work with telecommunication networks.


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