Disable incoming callerID

---

Is there a way to completely disable incoming callerID on the DroidX either via an Ap or by tweaking a rom? I'm working with a law enforcement program that requires all incoming calls to be completely anonymous. We have talked to our telco extensively and they are unable to turn off the incoming caller ID signal so I need to be able to remove the function from the phone.

I've seen the ability to block yourself from showing up when you make outgoing calls, but never the ability to hide incoming calls.

You might have to get this specially tweaked for you by a dev.