Will PIP contact my carer?

Hi my mum cares for me and iv put her down on my p.i.p review as one of my cares contacts. Will d.w.p contact her to ask about my condition. I ask this because my mum has a hard time hearing and I'm worried she won't be able to hear what the p.i.p asseser are saying and if im not ther when thay phone she won't be able to hear the questions thay ask