I heard my voice on OPPO phone during a QQ call/WeChat call/mobile call

The scope of the impact:

All models of OPPO

Countermeasures/Statements:

Hello, if you hear your own voice during a QQ call/WeChat call/mobile call, it is the echo from the other party's mobile phone, the problem is not your mobile phone. If during a call, the other party on the call says that they can hear their own voice, it is a problem with your mobile phone. If the other party hears their own voice frequently, please bring your mobile phone and purchase voucher to the nearest customer service center Detect.