According to Archer it was to give people the impression that Hunter had undo influence over his father. You are free to say he was lying, but when you do that this his whole testimony has to be taken in the same light.
I’m just trying to understand how archer and hunter could be on a business call, and dial joe into it, and talk about…what?? If the idea was to give the impression that hunter had influence over his father, obviously joe had to be included in the topic of the conversation.
Again, do the reverse test. If it was trump dialing in trump jr., would you believe it was just random and innocent? No, you wouldn’t.