Hi Lork67,
welcome to the Apple (user-to-user) Community!
Re: How do I ensure others around me can’t hear my conversations?
Wondering if this Apple Support article (link below) for iOS17 can help:
While on a call on iPhone - Apple Support
Eg: says:
Adjust the audio during a call
To change the volume, press the volume buttons on the side of iPhone.
Or
swipe down on the call banner, then do any of the following:
- Mute: Tap the mute button.
- Put the call on hold: Touch and hold the mute button.
- Talk handsfree: Tap the audio button, then choose an audio destination.
So when you are actually on a call:
see if swiping down on the call banner, and tapping the audio button, lets you choose the processors.
If you want to check your settings:
If your hearing device is compatible, when connected to it your iPhone may control microphone level (volume), audio presets, and more for your hearing device.
On your iPhone:
Go to Settings > Accessibility > Hearing Devices.
(To see more settings, tap the name of your connected hearing device.)
Else:
If your hearing device has its own app from the manufacturer, that app might offer additional settings and controls
All the best :-)