iPhone 17 Pro Max call sound is muffled

"iPhone 17 Pro Max call sound is muffled: Hi just got the new iPhone 17pro max and my daughter says I sound muffled when I call her. Is there something I need to do to fix that?"

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Muffled-Sounding iPhone 17 Pro Max:

Returning this:

You can troubleshoot this, all you want. But, who is the seller? If Apple, then Contact Apple Support, as it may be a faulty device. If not Apple, then return it. Have her perform as instructed here before handing it back, including the backup creation and iCloud logout: What to do Before you Sell, Give Away, or Trade in your iPhone or iPad - Apple Support

Troubleshooting iPhone Sound:

A Few Links that May Help:

• If you Hear No Sound or Distorted Sound from your iPhone, iPad, or iPod touch Speaker - Apple Support

• If the Microphones on your iPhone aren't Working - Apple Support

• Control Audio Playback on AirPods with iPhone - Apple Support

• Adjust Audio and Visual Settings on iPhone - Apple Support

• Adjust the Volume on iPhone - Apple Support

If None is of Success: Contact Apple Support.