One of the challenges with reading 3GPP documents is that it’s easy to forget the majority of details unless you work with them on a daily basis. For support or maintenance teams, this might be feasible, but for developers, it’s much harder. As a developer, you implement, deploy, debug, and often don’t touch the system again for a long time unless an issue arises or a new feature is requested. This is particularly true for telecom core elements like the MME, HSS, etc., which you rarely need to interact with.
With that in mind, I’ve started reviewing my old notes and highlighted 3GPP documents. I’m consolidating them into a single document that I can refer to whenever needed. It’s not focused on deep protocol flows, since those can easily be found when necessary.
I’ve been working on this project in my spare time, and this week I completed part one. I’ll continue summarizing all of my documents from the past three years related to IMS/VoLTE, and hope to finish soon.
Let me know your feadback! Take care ;)