I just finished listening to the full call. A couple of notes:
1) Trump very clearly says in multiple places (paraphrased), "I won this election in Georgia by hundreds of thousands of votes, but I only need 11,780 to win, so that's all I'm looking for. I don't need to prove more than that so I'm not going to bother. I'm not letting Dominion off the hook, I just don't need to prove that aspect of the fraud to deal with the election." He then enumerates many examples to back up the numbers he is using. There is no doubt he believes he won by many times the margin of Biden's pretend victory, and has the evidence to prove it.
2) In a few spots Trump said something that Raffensberger and his attorney should interpret as very dangerous, though it was funny also. Again paraphrased, but the couple of exchanges went something like this:
Trump: "I won by this huge number of votes"
Raffensberger or counsel: "We don't believe those numbers are accurate."
Trump: "Yes you do. You know the numbers are accurate."
My impression is that Trump knows for a fact that the numbers he gave are correct and he knows that Raffensberger knows it also. When Trump contradicted him on each occasion, he did it in a muted, sad way, as if he knew that Raffensberger was setting himself up for a lot of pain by not accepting the way out offered by Trump. The way out was to come clean, which he didn't do.
3) Trump was in command of the details, perhaps more than the lawyers. His mind is sharp and agile, unlike Biden and many other people in the world.