Meizu 16 did not answer the phone clearly.

Enter the setting options of mobile phone, click to select dual card and network to enter the setting interface, and finally click the Volte HD voice option.

Compared with the previous 2G and 3G voice lines, the call clarity and call delay have been greatly improved through 4G data bearer. At present, most mobile phones support Volte, which only needs to be opened at the operator.