@nathanwongggg 我当时也是认为不支持,然后看到了一条新闻: With the OnePlus 8 flagship phone, the OnePlus R&D team achieved a number of low-band 5G milestones in recent field testing on the T-Mobile SA 5G network, including:
First voice over new radio (VoNR) call First video over new radio (ViNR) call First voice call with evolved packet system (EPS) fallback First video call with EPS fallback 文章指明了是 X55 基带