My father and I cannot receive texts from each other. He's got a Samsung Galaxy Avant on T-Mobile and I've got an Iphone 6 Plus on Verizon Wireless. Neither of us receive any errors. Nothing is blocked on my account or on my phone. I'd like to verify with support if the messages are traversing Verizon's network. I'm trying to determine if we have a carrier, software or hardware issue. The issue was intermittent in the past but has been constant for months.