So I'm in the States (US Cellular), and my boyfriend is in New Zealand (Vodafone). The two providers ARE compatible, albeit as US Cellular explains, only via 1.5 way messaging. Which would be fine, if it worked.
I'm able to text him just fine (AKA he's able to receive them), but he is unable to text me (and both of us can call each other no problems). I understand that with 1.5 way messaging, he can't create a new text to initiate a conversation, but he should be able to simply hit Reply to respond... However the number that appears on his phone when he gets a text from me is a UK number: +447797806021 (which after google-ing appears to be an SMS gateway??) Long story short, I can text him, but he can't text me. Been a lot of one-way conversations going on! Help?