Q: I can not hear people when on the phone unless I switch to speaker phone.... Any suggestions??

Hi there Leland,

Welcome to Apple Support Communities.

If I understand correctly, the sound is low or muffled when making or receiving calls with your iPhone 6 receiver, but the sound is normal when using the speakerphone. The article linked below provides a lot of great information and troubleshooting tips that should help you resolve the sound issue with your device.

If you can't hear a person on a call or voicemail or if the sound isn't clear on your iPhone - Apple Support

Cheers.