Q: iPhone 6 - people can hear me, but i can't hear .......

Hi halinafrombedford,

Welcome to the Apple Support Communities!

I understand that you are not hearing sound from the receiver on your iPhone as you would expect. In this situation, I would suggest reading over and working through the information in the attached article to help resolve this receiver sound issue. 

If you can't hear a person on a call or voicemail or if the sound quality is poor on iPhone - Apple Support

Best regards,

Joe