Sasha hears the vibration from her terminal, reads the message, uses the grid to confirm that Remi is on board, and replies all:

in my room w/ ashari, iawa, & the fucking baby fox. R's suitcases r in the room at end of other hall.

Ashari's tablet plays a different sound after Sasha replies; that means she doesn't need to tell them that the first message was from Sulen.