A crossover coil is not a telephone line.
Can't change your basic nature, can you Bob?
As was pointed out, I tried to approach you in a tactful way, and you went off on a tear.
" Arny was gracious enough to admit he had never heard of a ring test, therefore could not be expected to know. Now that may be surprising, but hardly a hanging offence."
Nonesense Bob. I've had tens of thousands of pleasant interchanges with 100s if not 1000s of people. The problem here is you and your bad attitude, which is your fault, not mine.
In the next sentence you try to rekindle the argument, as you continue to avoid taking responsibilitity for your own communication problems by blaming me.
Not true.
"...most people have never heard of it..."
But thanks Bob for showing yourself to be a liar, as well as a person who can't take responsibilty for his own actions.
So what? Over the years they've marketed 100s if not thousands of different products. Their market is primarily the service industry, starting out with radio and TV service.
Currently about 120 different products, none of which has the word "ring" in its name.
Bob, you yourself admit that a ring test is primarily a test of communication lines. Here's a news flash - communications lines use inductors as loading coils. In the context of a speaker, this does not make a lot of sense.
As stated they form a mystery, not a masterpiece of effective communication skills.
Here's some news flashes for you Bob - if you want help try not to write mysteries, and when people try to treat you tactfully, don't spit on them. I tried to treat you with kid gloves and here you are again gratuitously attacking me. How Phildo-like of you.