Q: i phone 6 sometimes displays calling screen and i cant hear the person i am calling and they can hear me

Hi tracytah,

Thanks for the question. Based on what you stated, it seems like on a phone call they can hear you but you cannot hear them. I would recommend that you read this article, it may be able to help the issue.

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

Thanks for using Apple Support Communities.

Cheers,

Mario