Block caller ID

How can I block caller ID from going out so essentially the receiver should see as private or unknown.

Will be greatly appreciated

Asterisk (Ver. 1.6.0.26):

Howdy,

1.6 is EOL.

For newer versions, see:
wiki.asterisk.org/wiki/display/ … n_CALLERID

Thanks Malcolm. Any suggestions as to how I can do it.

Have a look at the the wiki link I sent you. You manipulate caller id from the diaplan using the caller id function.

Here you have other examples the-asterisk-book.com/1.6/funkti … lerid.html too

Thanks. Something I forgot to mention is to give the caller the choice of blocking caller id from going out. For example dial *65 and number so the caller id will not go out