Lab: Trace a VoNR call end-to-end

End-to-End VoNR Call Trace

In this lab you will trace a complete VoNR call from initiation to completion, identifying every signaling and media step across the network. The signaling plane trace covers SIP messages (INVITE, 200 OK, ACK) flowing through P-CSCF, I-CSCF, S-CSCF, and TAS. It also includes the Rx/N5 messages from P-CSCF to PCF for QoS authorization, SM Policy updates from PCF to SMF for flow creation, N4 PFCP session modifications from SMF to UPF, and N2 QoS flow setup from SMF via AMF to gNB. Each step has specific parameters to verify.