In the previous article we examined how Caller ID works andrnsome important considerations for law enforcement. Below is a quick review of the more salient facts and concerns regarding Caller ID.rn1. Caller ID (CID) is a feature that permits the called party to see the phone number of the calling party.rn2. CID is transmitted even if you have a "Private" or a "Non-Published" number.rn3. The telephone company provides two blocking options:rno Per call blocking (*67)rno Line blocking (all call are blocked)rn4. When utilizing CID blocking, the CID it is still transmitted along with information that tells the phone company not to display it.rn5. There are services that will reveal your number even when blocking your Caller ID.
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