Were you an employee of NTT? Why didn't you install DTMF filters on the phones lol I was calling like new zealand and shit. And I'm talking like, 20 years ago

Were you an employee of NTT? Why didn't you install DTMF filters on the phones lol I was calling like new zealand and shit. And I'm talking like, 20 years ago plus here... It could be bullshit for sure, I'm relating someone else's story.