MR Angiography (MRA) MR angiography (MRA) uses a powerful magnetic field, radio waves and a computer to evaluate blood vessels and help identify abnormalities or diagnose atherosclerotic (plaque) disease.
Dial a caller ID block code before the phone number. In the USA, dial *67 proceeding the number. In the UK, dial 141. So for example if you need to call 212-555-5555, Dial *67â¦-212-555-555 instead. Your caller will see a message that says caller ID blocked..
How to Call Private. Keeping your phone number private while making calls allows you to avoid return calls and control where you phone information is stored. You can have your number appear anonymous with a similar feature on both landlines and cell phones or use your smartphoneâs advanced capabilities.See Step 1 below to learn how.nter the blocking code. Using a blocking code will block the transmission of the caller ID information for that phone call. It will need to be entered before every phone call that you want to make private. The code works for both mobile phones and landlines. 1  US/Canada-Dial *67.