people can not here me
New I phone 6 when I call people most of them say they can not here me and hang up or I sound gargled
Before you contact Apple to get the phone serviced, did you already try the troubleshooting mentioned in this article?
Get help with the microphones on your iPhone, iPad, and iPod touch - Apple Support
If you did, and this has not solved the issue, you'll have to get it checked by Apple.