Questions about T-coil functionality in Phonak Audéo Marvel M90-RT

My previous set of hearing aids were Phonak Audeos but a different line that didn’t offer direct streaming. I just changed to the Marvels to get direct streaming and rechargeable.

Using the same phone I don’t have the same experience with the Tcoil. It doesn’t seem to be amplified as much, nor do the voices on the other end sound as clear. My old Phonaks were also set up so that if I held the receiver in the right spot the telecoil automatically kicked in. That doesn’t happen with the Marvels when I am in autosense. My audiologists doesn’t seem to be very proficient in setting up the phone programs with the Phonaks. So I am hoping someone may be able to answer my questions:

  1. Is there anyway to set it up so that the T coil automatically kicks in on a compatible phone when I hold the receiver in the right spot?

2 Is it Possible to use both Tcoil and acoustic phone at the same time, and is the programming any different than for accoustic phone without Tcoil?

3 Any ideas why Tcoil in Marvels Isn’t as helpful as the Tcoil in my older Phonaks when using the old phone - could it be because I have both Tcoil+ mic and accoustic programs?

  1. Is there anyway to set it up so that the T coil automatically kicks in on a compatible phone when I hold the receiver in the right spot?

No. The Marvels don’t have any automatic telecoil activation. Having this feature requires an additional component to detect the magnetic signal which was available in older models but not the Marvel T models.

2 Is it Possible to use both Tcoil and acoustic phone at the same time, and is the programming any different than for accoustic phone without Tcoil?

No. Acoustic Phone uses a special feature to deliver the microphone signal from the phone ear to the opposite ear via 2.4 GHz. There is no way to have both telecoil and such a 2.4 GHz feature active simultaneously due to interference.

3 Any ideas why Tcoil in Marvels Isn’t as helpful as the Tcoil in my older Phonaks when using the old phone - could it be because I have both Tcoil+ mic and accoustic programs?

Unfortunately telecoil, Bluetooth/2.4GHz and rechargeable technologies don’t play well together. The telecoil on the Marvel devices is not geared for telephone use (and more for hearing loop telecoil use) probably due to the direct connectivity phone capabilities the hearing aids provide.

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Thank you. So for a regular landline phone that isn’t a Bluetooth phone, am I better off using acccoustic phone vs Tcoil? Also do you know if all the Bluetooth compatible phones will require me to manually switch into accoustic or Tcoil mode?

I have M90-13T aids and I haven’t used the T-coil function much. It does require the T-coil function be activated manually, or at least that is the way mine are set up. In fooling around with T-coil to see how it works, I did hear what ever it picked up in both ears. I don’t remember it working with a telephone though. It might, I just don’t remember it doing it. The older method of using the magnet to detect a phone receiver next to the ear has been discontinued, I think. I also have some B50 aids that have that feature, and it rarely did anything because most telephone, and I would say all cellphone receivers either don’t have magnets, or they are so small that they don’t trigger the Duophone feature. I think Phonak expects users of Marvels to stream from their cellphones and not even use landlines anymore. Best I remember, when you place the telephone next to your ear, with Marvels, you only hear it in that ear. I will have to try using T-coil on a phone call to see how that works. My problem with that is finding a telephone that creates enough of a magnetic field to hear it with the T-coil. What I have heard when trying to use T-coil with a cellphone is the electromagnetic trash the microprocessor in the phone generates. And that is pretty loud coming from my LG Stylo 3.

Unfortunately, while the older models did have the duo t-phone feature just like the duo acoustic phone feature, the Marvels do not. I don’t know why.

But the telecoil should still work well assuming that you have the phone t-coil enabled rather than the public t-coil, and that you have a telecoil compatible phone.

My audiologist enabled both the phone and public Tcoil options, as well as the accoustic phone option. The phone I tried the Tcoil phone program on was the same one I have occasionally used with my older Phonak hearing aids with Tcoil. But with the marvels I actually felt that it was easier to hear without the Tcoil, though I could hear some amplification, the sound wasn’t as clear, and I didn’t get any tones in my hearing aid when the Tcoil disconnected from moving the receiver. I was mostly using my home phone as a test for the Tcoil, since I knew it had worked with my older Tcoil.

No, you wouldn’t. The auto phone feature is gone.