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.
If your friend's phone rings a different number of times before you a message, there's a good chance that your number was blocked. If you get the same number of rings and the same message, or if your friend picks up, your number may not have been blocked.He may have been on another call or his phone may not have been getting a signal. Send a text message if you're trying to call someone's cellphone.Write something like, Hey, I've been trying to call you.. If your number was blocked, your friend won't receive the message. If he responds, then you know you aren't blocked.f your friend's phone rings a different number of times before you a message, there's a good chance that your number was blocked. If you get the same number of rings and the same message, or if your friend picks up, your number may not have been blocked.