The R&S®CMW500 wideband radio communication tester in combination with the R&S CMX500 5G communication tester comes with everything needed to test 5G voice services (VoNR) on mobile devices. It features an internal IMS server, enabling registering of 5G devices and setting up the required bearers and QoS flows necessary for voice services. The virtual user equipment (UE) emulation, allowing for establishing mobile originated and mobile-terminated end-to-end voice calls in loopback mode for fast and easy VoNR functional tests. The user can select between the supported codecs, such as EVS and AMR-WB or AMR-NB with their respective codec rates. To test audio quality during a call, an analyzer is required. It must be able to generate and analyze audio waveforms using the latest methodologies according to PESQ or POLQA, whereby POLQA is used for audio quality measurements during VoNR and VoLTE calls. To do so, the R&S®CMW500 & R&S®CMX500 setup can be extended by an audio analyzer. For example with the Head acoustics AQUQA system as shown in this demonstration.
R&S®CMX500 5G one-box signaling tester
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