LG U8150 Owner's Manual

Page of 218
48
know who is calling you, or hide your number
when you make a call
Your Caller id identifies you to a person you are calling and
identifies a caller to you.
To hide your number when calling another person, simply
dial 141 before the number. 
To hide your number permanently, call customer services
on 
150
from your Orange phone or 
07973 100 150
from
any other phone. If you are a pay as you go customer, 
please call
451
from your Orange phone. While your
number is hidden you will not be able to see the Caller id
of any incoming calls.
Note: If you are abroad the availability of the services
described in this section depends on the network that you
are using.
make calls