We just switched one of our phone lines to Verizon because a family member wanted an iPhone, which our carrier doesn't support. The phone is activated (as of about 8 hours ago). My non-Verizon Android can receive texts from the Verizon iPhone, but the Verizon iPhone can't receive texts from my non-Verizon Android. Doesn't matter if it's on wifi or LTE. The iPhone is set to use SMS/MMS if iMessage is not available. I've opened a ticket with my carrier in case it's a problem with my phone, though I've been able to send texts to another Verizon iPhone for years with no trouble, which leads me to think it's a problem with the new iPhone.