デジタルPBX ぴいびいえっくすではありませんでした
dejitarupiibiiekkusudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of デジタルPBX

1. Was not a digital PBX.; Was not a digital private branch exchange.

Past/Perfective
Negative
Polite
Formal Register
Computing