How to programatically hide Caller ID on Android

Question

Hi,

on Android phones, under Call -> Additional settings -> Caller ID

it is possible to hide your caller ID. I want to do that programatically from my code, but was not able to find way to do that.

I searched through

android.provider android.telephony

for 2.1 release and was not able to find it.

Has anybody successfully solved this issue?

Thanks in advance. Best regards.