Have you ever been asked, or ever wondered, âIs refrigerant, especially R-134a, heavier than air?â. Just this week I was asked this very question. Thinking I knew the answer right away, I was able to contain my natural, blurt-it-out style of an answer, at least until now.
Add a Contact to the Blocked List. Block someone from calling or texting you one of two ways: 1  To block someone who has been added to your phone's Contacts, go to. 2  The All Contacts window will appear where you can scroll through names to then tap the name of the contact you'd like to block.
4. Tap i next to the phone number or name, and select Block This Contact towards the bottom of the screen. 1  This will block the number from contacting you on calls, texts, Facetime, anything.2  You won't even know they called.ontact your cell phone carrier and request to block a number. For example, if your iPhone data and voice plan is currently with AT&T, contact their customer support line to request a number to be blocked. This is the only method of blocking a number on the iPhone without Jailbreaking it.