たん方向 ほうこう通信 つうしんじゃなかったです
tanhōkōtsūshinjanakattadesu

Noun
Desu Copula

The polite, past negative form of 単方向通信

1. Wasn't one-way communication.; Wasn't a one-way communication.

Past/Perfective
Negative
Polite
Casual Register
Telecommunications