Remote customer-support openings I found - any advice?

I came across a list of work-from-home openings with paid training. I do not usually post, so bear with me. The schedules are set in advance, including some weekends. Are there warning signs I should look for?

Legitimate ones never ask for money up front. If they ask you to buy equipment first, walk away.

Read reviews from current staff on job-review sites before you accept.