Before contacting Apple Support, here’s what to do if you experience sound issues on iPhone during calls
Sometimes it can happen that you have audio problems on iPhone during calls. Without having to think catastrophically about hardware malfunctions, you must know that there are some factors that can make the purely telephone use of the smartphone less comfortable, such as poor signal reception, but also some defects that can be circumvented by exploiting some settings of iOS.
Before researching any hardware problems, we therefore suggest that you take a “tour” in the settings of yours iPhone and follow these simple steps, which may in some cases lead to a resolution of the problem.
First, check that you have set the maximum the audio of the calls. During the conversation with your interlocutor, repeatedly press the volume + key on the left side of the iPhone.
As we wrote at the beginning, any telephone disturbances can be affected by one bad signal reception. If generally a signal notch is sufficient to receive and make calls, it could be that the audio of the conversation is disturbed.
Then check the signal icon located at the top right of the iPhone screen and make sure you have good coverage. If not, move a few meters to try to get an adequate signal, or turn airplane mode on and off: in this way, the smartphone will search for a new repeater.
Sometimes, even a restart the iPhone is sufficient to solve the problem. If during the conversation you notice that the audio is not of good quality despite having maximum coverage in the area, try a restart of the smartphone by pressing the power button on the right side of the device, in the case of an iPhone with Touch ID, or right button and the volume + button on newer models.
IPhone call sound problems: Reset network settings
Can’t solve the problem? And then try a network settings reset. Enter the iOS Settings app, press on the General item, tap the Reset item and press precisely on Reset network settings.
We also suggest you disable the “Cancellation telephone noise”In the Accessibility section of iOS. Then enter the Settings app again, press on General and tap on Accessibility, then deactivate the corresponding function.
In case of unsuccessful attempts, you just have to restore iPhone in factory state: backup your data first, so you don’t lose important information. This is the last attempt to make before sending the smartphone for assistance and looking for any hardware defects.