How do I block Caller ID from a cell phone?

[DevilsAdvocate]

I'm hunting down a troll.

Today was NOT the day to piss me off.

 

[Wheatmaster]

*67

 

[Ketteringo]

*67?

To do it on mine (Siemens S56) it is in the menu, under Setup, then Phone Set Up, then Hide ID.

 

[RossMAN]

If you have the troll's landline phone number do a reverse lookup.

If you have their address do a reverse address lookup.

 

[Twista]

my phone is auto block. Requested by a call to the cell phone ppl.