Nothing beats a throw away
Everything you do on the Internet is tracked through your IP. Don't be stupid and think because you are not using a phone directly it isn't traceable. It is even more traceable. Server logs keep all that info. Now wether Uncle Leo would take the tiem and expense to get a warrant for something like that for such a petty case is another thing but you are NOT safe using VOIP.
Throwaways are the safest bet. And don't pay with your CC. Pay cash for everything.
Let's Stay Focused, Gents.
Throw away phones, secure voice apps, definition of porn star. Really?
The forum heading is 'Backpage Advertiser Reviews'. These other topics should be discussed elsewhere.
Jes' sayin'.