Update Your iPhone
Your iPhone may be acting up because of a software issue. Maybe there’s a bug causing the phone calls to be low-quality.
While we can’t be entirely sure about that unless Apple confirms it, it’s always best to be safe than sorry and update your iPhone.
Besides possibly fixing your phone call problems, updating your iPhone will also help you get security patches and other bug fixes for issues you may not have known you had.
To update your iPhone, you need to do the following:
- Open the Settings app.
- Scroll down and tap on General.
- Go to Software Update.
- If there’s an update available, tap on Download and Install.
After it’s done updating, try making a phone call to ensure your problem is fixed.