VoLTE E2E EPS & IMS Attach/Registration and IMS MO Call Flow(Training Session#2)

𝗧𝗵𝗲 𝘀𝗲𝗰𝗼𝗻𝗱 𝘀𝗲𝘀𝘀𝗶𝗼𝗻 𝗼𝗳 𝘁𝗵𝗲 𝟰𝗚 & 𝟱𝗚 𝗩𝗼𝗶𝗰𝗲 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 Training Bootcamp has been launched. This comprehensive training campaign focuses on 4G & 5G voice services, including VoNR, VoLTE, and EPS Fall-back. 𝗧𝗵𝗲 𝘃𝗶𝗱𝗲𝗼 𝗰𝗼𝘃𝗲𝗿𝘀 𝘁𝗵𝗲 𝘀𝗲𝗰𝗼𝗻𝗱 𝗘𝟮𝗘 𝗰𝗼𝗺𝗽𝗿𝗲𝗵𝗲𝗻𝘀𝗶𝘃𝗲 𝗩𝗼𝗟𝗧𝗘 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴, 𝗮𝗱𝗱𝗿𝗲𝘀𝘀𝗶𝗻𝗴 𝘁𝗵𝗲 𝗳𝗼𝗹𝗹𝗼𝘄𝗶𝗻𝗴 𝘁𝗼𝗽𝗶𝗰𝘀:

1- Introduction to Session 2 (Recap of High-level VoLTE Call Procedures).

2- End-to-End 4G Attach Call Flow and UE & EPC VoLTE-related Capabilities observed from Logs during initial Attach.

3- IMS APN Attachment & QCI5 Activation, and how UE Acquires IMS IP Address from the EPC.

4- IMS SIP Registration – End-to-End Call Flow and Explanation of SIP Register contents.

5- High-level Overview of IMS Mobile-Originated (MO) Call Flow.