ぜん じゅう通信 つうしんじゃありませんでした
zen nijū tsūshinjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 全二重通信

1. It was not bi-directional communication.; It wasn't two-way communication.

Past/Perfective
Negative
Polite
Terminal Form
Computing