Upload to file or download to file which one sends
the info I have on my computer to the phone system?

From computer to telephone system: Upload

From telephone system to laptop: Download.

One way that might help in memorizing this is to visualize:

• What ever device you are using (laptop, computer, et cetera) is directly in front of you.
• What you are connecting to (telephone system, internet, et cetera) is above you.

Now the information flow is Up or Down.