Wash picked up the habit soon after xi zihuan de to simultaneously chime both Mal's bunk and Inara's shuttle for calls directed to the captain or the Companion.

Inara checks the commscreen behind the curtain when the beep is heard, noting the address and pulling Mal toward the screen, afterward leaving the shuttle to give Mal some privacy during the call.

Cough, then click Accept.

"Ni hao."