No need to use *67 each time you make a call, simply set up Permanent Caller ID Block and all of your calls are anonymous until you disable the feature. You can deactivate it on a per call basis, with most VoIP adapters, by dialing *82 prior to making the call. This allows your Caller ID information to be passed. Once you hang up, your Caller ID information will be blocked for all future calls unless you dial *82 before making another call.
