During the perimeter orders an unregistered voice comes onto the operative's channel at the Node in the ring's cable vault and calls for the operative by its own callsign. Operations tells the operative not to answer it, because its live channel is already authenticated.
Operations logs what answered on the channel as a carrier fault, and Records have the recording. The voice comes back at the head of the maintenance shaft and says the callsign twice.
The order
ARC-00 gives the same order for its own archive: if the archive transmits your own callsign, do not answer.
Not recorded
No record names the source. Staff transponders still answer from inside the lattice. The one Operator-shaped signal on file, ECHO-07, is encountered only in the Black Annex.
See also
Records cited
- Critical Response, story mode, orders I-1 and I-2: the channel