We already wrote about the fact that iPhone 7 and iPhone 7 Plus hiss of users, and EarPods with a Lightning connector fails the control panel. Now in a network there were messages in which users of iPhone 7 and iPhone 7 Plus are complaining of low sound quality during calls.
the Voice seems distorted or distant, as if it was located in the back of the smartphone. The usual sound when we are not talking about talking on the phone, it remains on the level. Decrease the volume softens the problem.
Apple does not offer any reliable solutions, and professional yet direct users to the shared document on the support site explaining what to do if the sound from the speaker is missing or distorted.