Lets you block calls that are set as anonymous on Caller ID so that they don't ring through to your phone. The anonymous caller will hear a fast busy signal and you no longer have to worry about taking a call from somebody you may not know.
a service which prevents calls from being connected or put through where a caller has withheld CLI
Lets you reject calls from callers who have blocked the display of their name or telephone number on Caller ID display units. The caller will hear an announcement that you are not accepting blocked calls. The message will instruct the caller to hang up, remove their blocking and call again.
Reject any inbound call from anonymous parties who have explicitly restricted their Caller ID information.
Allows a user to ignore incoming calls from anonymous callers (those with Calling Line ID Delivery blocked).
Where a caller has withheld CLI, this service acts to prevent calls from being put through or connected.