Why can't I hear the other person on my iPhone?
Reason 1: Microphone disconnected
The most obvious reason for the lack of sound from the interlocutor on the iPhone during a phone call is a disconnected microphone, since both interlocutors are free to block the corresponding component. Unfortunately, you can't check for sure without personal with the person you're talking to.
The possibility that there are problems with the other party and that the microphone simply does not work cannot be ruled out either. In either case, we recommend that you try calling the other party to make sure your device's speakers and other components are working properly.
Cause 2: Low volume
During a call, the volume of the polyphonic speaker can be adjusted at will for a comfortable conversation, even at a lower setting. These settings, once configured, are ed for all subsequent conversations, so you may not notice them.
The solution is to simply press and hold the volume up button until the proper level of audibility is reached. You can also simply activate the speakerphone using the speakerphone button on the call control screen.
Cause 3: Problems in the cellular part
If there is a problem with the cellular network on your side or the other party's side, the sound may deteriorate or be lost altogether. You can tell if there are problems by the number of network bars in the device status bar, or if the speakers are working optimally everywhere except for calls.
On the other hand, please note that the network quality can be slightly improved by opening the settings "Telephone". in the system "Settings". and activate the option "Wi-Fi calls." on a separate page. Of course, this will only work when using the proper wireless network and only for some mobile carriers.
Reason 4: Device Malfunction
The problem in question does not have as many causes as, for example, the total lack of sound, and is usually related to the factors mentioned above. If you are sure that this is not the case, we recommend that you test the functionality of the speaker on your device by playing any content.
Read More: Solutions to No Sound Issues on iPhone
Whatever the result, another important action is a hard reset. It involves pressing a certain combination of physical buttons and waiting for it to turn on again.
Read more: Restart iPhone
If problems with speakers or phone calls return after a reboot, hardware failure is likely the cause. Sometimes a soft reset without wiping data from the corresponding hive can do the trick.
Learn more: How to reset your iPhone settings
As a last resort, if none of the recommendations have been helpful, you will need to go to the manufacturer's service center. The addresses of the centers and other tips can be obtained in the official application.
In addition to the above, we recommend paying attention to the availability of the Hands Free button. If it is not available (the button is not pressed), the cause is probably a failure of one of the components responsible for the codecs.
Cause 5: Headphone malfunction
Also, if you use a headset instead of a speaker to communicate, you should check that the headset is working properly. Again, this can be done by turning on the music or playing any media with sound.
Read More: Troubleshooting connectivity issues with AirPods on iPhone
If there is still no sound, you need to replace or, if necessary, take the headphones to a service center for inspection and repair. Also note that if the sound is present in the earphones but not in the device itself, it is a guaranteed case of mobile phone malfunction that requires repair.