Generic selectors
Exact matches only
Search in title
Search in content

Reply To: Anti-competitive practices by telcos

Teodor Georgiev

I do not think that it is specially made to mess with VoIP operators, it is to close some security holes in the payphones, which phreakers used to use in the past to place free phone calls by emulating tones (“coin collect”, “coin return” and etc).

Read on Internet about “Green box” and “Red box”. I think that these two are the ones related to the payphones.