FTTx えふ・てぃう・てぃう・えっくすじゃないです
efu·tiu·tiu·ekkusujanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of FTTx

1. It's not FTTx.; I'm not using FTTx.

Negative
Polite
Casual Register
Telecommunications