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.
Protect your privacy when you make an outgoing call. 1  Block your name and number from the person you're calling. 2  Always ready to use. 3  Included with Home Phone. Call Trace can still identify blocked calls made from your phone. 2  Voicemail will still identify your blocked number when you leave a message. 3  Your blocked number could appear on calls to foreign countries where the local telephone company does not honour call blocking.