Not surprisingly, there are quite a few paranoid potheads out there who pass info around on spotting a tap. This one is interesting....
Curiously enough, 202-543-9994 is active. Didn't hear any static. The second number doesn't seem to work outside of the U.S.
Originally Posted by http://famguardian.org/Subjects/PropertyPrivacy/Privacy/PhoneTapCheck.htm
This article describes how to find out if your phone line is tapped or if the government is listening.
Listen for a steady monotone signal with no interrupts. That means you are not being tapped. If you hear any interruptions in the signal tone, then you are being listened to.
You want to hear a voice that says “1” or “2” that means no tap is underway. If you hear “3” or “4” you are tapped.
Anyone else come across any amusing or interesting leads on how to spot a tap, or various urban legends?