三者 さんしゃ通話 つうわ機能 きのうじゃなかったです
sanshatsūwa kinōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 三者通話機能

1. Wasn't a three-way call function.; Didn't have a three-way call function.

Past/Perfective
Negative
Polite
Casual Register
Computing