Anecdotally, it's typically the people in the room who are either a) late to the meeting or b) go off on tangents or c) cause the meeting to overrun. There are lots of good and bad things about remote workers... but being a hamper on meetings shouldn't be one of them.
If you have 20 people in the office - and 1 remote worker - your conference times should be at the preferred time of the 20.
Yeah, I agree. In my experience, the biggest problem with remote people on the phone is that they are actually doing other work during the call and being productive, so if you don't make it clear a question is aimed at them, they might miss it.
Ugh. Biz people can be really bad at this, because they think everyone has Powerpoint.
Once when I was remote, I specifically arranged before the meeting with one coworker to set up a kibbutz session (kibbutz is an expect-script that works a lot like screen, and screen may well have worked, too) showing my terminal, and she was hooked up to the projector, so I could visually walk everyone through my code.
If you have 20 people in the office - and 1 remote worker - your conference times should be at the preferred time of the 20.