What is a "friend"？ There is a lot of content (novels, animations) featuring a teenage protagonist who continues to worry about it.

I don't know about teenagers, but I found a definition of "friend" that can be easily discerned as an adult.

"Whether or not you have a "partner" to go along with the confirmation process, when you complete the setting of the conference call system"

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I have just completed setting up the conference call system.

However, I am having trouble because I cannot do the system test.