Caller ID technology provides people with an opportunity to see who is calling before they answer a call. People who want to block their phone number can select an option from a phone service provider to block the number showing up on all their outgoing calls, but when calling someone who does not answer blocked calls, callers need to unblock their numbers. It is a simple procedure, but must be executed each time a phone call is made, unless the phone subscriber asks the service provider to drop the blocked ID feature on the phone. Tips Writer Bio
