Study on support of voice over WLAN
The present document studies enhancements required for the support of VoIMS via Trusted and Untrusted WLAN access related with QoS differentiation for better user experience.
This includes:
- potential user plane impacts for the support of QoS differentiation;
- potential UE-TWAN and UE-ePDG signalling enhancements for the support of QoS differentiation.