Effectively, yes. Tariffs are basically just a sales tax. It’s a little more complicated than that but the end result for consumers isn’t really any different.

If I’m understanding correctly, you’ve not been selling the customer the additional feature but they think you have been and now your boss wants you to actually start billing them for the feature that they mistakenly think they are getting already but without actually providing the feature to them? Assuming that is correct it really does sound like fraud. Generally you can’t knowingly sell something you aren’t capable of selling but still collect the money. Even if the victim mistakenly thinks they got what they paid for you are still defrauding them of the money. I’m not a lawyer but I think if you do this you may end up needing a lawyer. Is there anyone else in the company besides your boss that you could talk to about this? The more people know about what is going on the harder it will be for your boss to pull of whatever he is trying to pull off. If something like this was going on where I work I would be documenting everything and sharing it with whoever would look at it, starting with my bosses boss. I wouldn’t make any accusations though, just present the facts and express your concerns.

My phone does that sometimes when the battery gets really low. I think the radio has a power saving mode where it stops transmitting most of the time and tries to only transfer the bare minimum data. Or at least that seems like what’s going on with mine.