通話 つうわ料金 りょうきん せいじゃないです
tsūwaryōkinseijanaidesu

Noun
Desu Copula
no-Adjective
Negation Auxiliary

The polite negative form of 通話料金制

1. It's not a call charge system.; It's not based on call charges.

Negative
Polite
Casual Register
Computing