Phonak P90 + iPhone: any way to stream caller but use phone's mic?

[Zebras]

This helped me loads on my M70 and now also P70.

My Dad can hear me better through my Phonak Marvel when features are off

I have the Phonak M70 hearing aids. I’m also a self programmer. Something I’ve noticed is when I activate NoiseBlock, SoundRelax and WindBlock, my Dad struggles to hear me when on the phone. When I turn off all those features on the Phone Call program and call my Dad in the same situation (on a very noisy bus on the exact same road) he can hear me SO much better. Just thought I’d post in case it helps anyone else. (Please note, that we have all different hearing loses etc and it may not work…

I don’t have any issues with callers on other end complaining of background noise.