Here’s a cool hack showing you how to unblock blocked caller-ID numbers.
*This is informational purposes only. Do not use this hack unless you are a law enforcement agent.
In a demonstration video, a hacker tweaks said asterisk box with some new configurations to strip out privacy flags, forward the call to another number, and ultimately reveal caller ID information which, surprisingly, is still available. This isn’t meant to be easy, but if the terms “prepend,” “SIP trunk,” and “asterisk box” don’t scare you away, go ahead and watch the video after the break.