相手 あいて固定 こてい接続 せつぞくでしょう
aitekoteisetsuzokudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 相手固定接続

1. Probably connected to the other party.; Likely a fixed connection with the other party.

Polite
Presumptive
Conjecture
Computing