We see Louise's half of the call with General Shang in the screenplay;
"General, I'm calling from the American site. Your wife spoke to me in a dream. She said you'd help save the world by being braver than everyone else [...] War doesn't make winners, only widows."
Interstingly, there's a slightly different version in The Art and Science of Arrival, marked as "Final Dialogue used for Louise's call to General Shang"
Louise: General, I'm at the US base. General, your wife appeared in my dream. [She said] you should use courage to help save the world. General, she also said that war doesn't make heroes, only orphans and widows.
in relation to other untranslated section, we don't get a direct translation of Louise's Heptapod symbol, but we can discern from the dialogue that she said something like
- "{We / humanity} {choose / chose} {to receive / to have received} {the weapon / the gift}"
Ian works out that we're being offered a gift, one that can also be used as a weapon. Shortly after she makes her choice we then receive the aforementioned gift (which turns out to be a complete history of Heptapod civilisation).
IAN: My god. It's not a problem at all, it's a choice.
He charges off, right out of the tent.
LOUISE Ian? Ian, wait—
EXT. BASE CAMP - CONTINUOUS 87
Louise trails after Ian, who's headed right for the pickup.
LOUISE: What choice?
IAN: That's what they're saying. It's like a warning label on a power tool. Whatever they're offering us, we can use it to flourish for millions of years, or we can do something stupid and end it all right now.