This simple phone contacts manager allows you to Block your Outgoing Caller Id,hide your phone number,so you can set who can see your phone number and who can't. by adding the hide code (of your country) or select it from a given list and selecting contacts ,you can hide your phone number for specific contacts or for all of them... It also allows you to use your phone 's default settings to hide or show your caller id for all your contacts . - Simple app to hide phone number / hide caller ID.