Speaker
they do not hear me when I call through speakers or FaceTime or any other video call
iPhone 11 Pro Max
Hi gzimi240,
Welcome to the Apple Community,
where some of us do our best to help each other troubleshoot :-)
Apple support have an article online that may help you.
If the microphones on your iPhone aren't working:
https://support.apple.com/en-us/HT203792
Hope this helps you :-)