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.
You can't call that person if he or she has blocked your number. You could call, using another number, either cellular, fixed line or VoIP number, but that is another totally different story. That is precisely the idea of blocking someone's number, to avoid receiving calls from that person you blocked.