- To do so, go to Settings->Sounds & Haptics-> and, if required, pick Ringtone. To test whether your iPhone speakers and sound function, try different ringtones.
Accessibility is another feature or option on your iPhone 6s that you should examine. There is a Call Audio Routing option under the Accessibility menu. During phone conversations and FaceTime audio calls, it is a settings option that determines where the audio is heard. Set this option to Automatic to see if that helps.
- Go to Settings->General-> Accessibility->then scroll down to Interaction section->tap Call Audio Routing and lastly pick Automatic from the options. If it's already set to Automatic, try changing it to Speaker and using your iPhone to make a call or FaceTime audio call to check if your speaker works. If the speaker is working properly, return to the settings and change this option to Automatic.
You might also attempt the Airplane mode technique. Simply turn on Airplane mode for 1-2 minutes and then turn it off.
- To do so, navigate to Settings->Airplane mode->flip the switchon and off to enable or disable the capability.
Check to see whether your iPhone speakers operate in Airplane mode and while it's turned off.
check if this solution works or not
