I took your advice and called my audiologist. She called Bernafon to check for herself and reported back that the there is a t-coil in my Veras 9 CPs and that it is automatically activated. As far as telephones go, she said it works with land lines only, not cell phones. I’ve never noticed anything kicking in when I use any telephone, but maybe electronic wireless telephones don’t activate my t-coil either, and I haven’t used a real land line in—I dunno—years maybe. Perhaps since before I got these HAs.
EDIT: Also, I just discovered that you can test whether your HAs have an automatically-activated t-coil by simply holding a magnet—even a weak one on the back of one of those magnetic things you stick on your refrigerator—up against your HA. After a few seconds you will notice a new, enhanced sound kick in if your HAs have an automatically-activated t-coil. After noting this, I put a small piece of magnetic tape on each of my HAs, which activated both t-coils, and suddenly I could hear the TV sound in my HAs via my Sennheiser SET840-S inductive neck loop system, which I previously had used only with light headphones.
The t-coil sound has the advantage of not requiring messing with headphones, and my wife can still speak to me over the TV sound, which seems very natural. The light headphone sound has the advantage of being in full stereo, which is nicer particularly when listening to a DirecTV music channel—the t-coils are in mono only. Both are delivering crystal clear sound that enables me to understand every word spoken my film actors—even when they whisper like Bruce Willis.
The next step is to get my audiologist to convert one of the four programs in my HAs into a manual on/off t-coil switch—then I won’t have to use the magnetic tape to turn on the t-coils. Bernafon tech support sent me an email saying that this could be done. My audiologist appointment is in mid-April; I’ll report back after that.