Iphone 7 phone speaker not working during calls

- Iphone 7 speaker not working during calls
- Iphone 7 ear speaker not working during calls
- Iphone 7 microphone and speaker not working during calls
- Iphone 7 mic and speaker not working during calls
- Iphone 7 speaker icon not working during calls
- Iphone 7 speaker option not working during calls
- Iphone 7 speaker button not working during calls
- Iphone 7 speaker not working