I agree with you about this point. I didn’t think that through properly. Let me try again and maybe this won’t make any sense either but here goes. I want to connect my landline phone to my HAs (either bt or t-coil, it doesn’t matter to me) so I don’t have to use the handset. So when a call comes in on the landline phone how do I connect to the phone and answer the call through my HAs. I don’t know how to do that. Do I have to answer the phone manually, i.e., pick it up and then the voice of the person calling will be in my HAs. I thought if I could do this then I would need to have some way of controlling the volume because some people have reported that streaming from a phone can be very loud. That was the point of my question. But you are right it makes no sense to have an app on the mobile to do that.