送信 そうしん がわ てぃう えす利用 りよう しゃでしょう
sō shingawa tiuesuriyōshadeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 送信側TS利用者

1. Probably the transmitting TS user.; Likely a TS user on the sending side.

Polite
Presumptive
Conjecture
Computing