ぎゃく方向 ほうこう通信 つうしん でしょう
gyakuhōkōtsūshinrodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 逆方向通信路

1. Probably a reverse communication channel.; Possibly a reverse communication path.

Polite
Presumptive
Conjecture
Computing