Can Denz help out here, I was reading back through. We appear to be going over some corrupted text logs from the base trying to track down where ever Kazan shipped off the scrolls, or maybe himself. Soapy isn't along for the ride (I can't remember if my droid joined us), but I do have skills that may help?
Unfortunately, how he found them is neither here nor there- you don't have that info, only what her communicated with them. We're talking first-step basic principles of communication here. It;s so obvious you don't think about it in day to day life (certainly in much of the US) but it;s a bigger deal in the Star Wars galaxy,
Did he text them? Normally people communicate by holograms in Star Wars, but if we are looking in a massive data dump, maybe he sent an encoded message, typed out rather than live feed.
I was going to suggest that maybe he sent someone to talk to them but that's not something we could really establish and he's in the midst of a siege.
Sorry this reply is a bit delayed, struggling to think of how he could have communicated with them.
Perhaps he had the equivalent of an address/contact book saved on his base computers, he typed in who he wanted to talk to and it listed their details or set up the connection?
Or is this still too complex, are we just needing to work out if he used the equivalent of him using a land line connection or the internet?
No you don't need to think about anything like that at all- the means by which he contacted them is completely irrelevant, because all you have is a text dump. You need to find the right parts of that to look at, is all, and hence the means he used is neither here nor there.
It was going better when you were thinking about what sort of words to look for- which brings me back to the 'basic, first principles of communication' thing I alluded to before.