Using Spirent TestCenter ALP
1. Configure Voice QoM. Edit SIP User Agent Profile->Data Plane, Call Type choose Audio, RTP Traffic Type choose Encoded RTP, and check Voice QoM
2. View QoM Result. On Traffic Aggregate View: Results2, Change Result View->System Views->Applicaton Layer Protocols->SIP->Ua Results, then you will see VQ Audio/VQ VoIP