Question about Xiaomi 5G CPE Pro (V2)

Warning: this router does not support VoIP! And this is not mentioned anywhere! I found this out after I'd bought it, and after a lot of back and forth with XIAOMI's almost non-existent after-sales service. What's more, according to them, the product sold to me by Galaxus-Digitec is intended for China, and has no support in Europe...