Using iMessage abroad on Wi-Fi
Hi, I am currently living in Germany and I have both an iPhone 3GS (US plan with AT&T) and an iPad 1 (having same issue with both). I was in the states when iOS 5 came out and I immediately updated. My iMessage was working perfectly fine in the states. (I understand that iMessage only works with other iOS 5 users). I was able to iMessage my mom to her iPad 2 and I was able to iMessage my husband to his German iPhone 3GS while he was in Germany (both obviously with iOS 5 installed). But, now that I am back in Germany, iMessage doesn't work at all. I am connected to Wi-Fi and currently have data roaming turned OFF. When I open a new message to my Mom's iPad (back in the states) and my husband here in Germany, it knows that it will be an "iMessage" (as it says "iMessage" in the text box where I would begin typing and for other people without iMessage it just says "Text Message"). After I type a message and send, it is blue and appears to try sending, but eventually it says "Message Send Failure". Also, I am also unable to receive an iMessage. It is my understanding that this should work. Any ideas why it's not or am I wrong and it's not supposed to work that way? Thanks in advance for your help!
iPhone 3GS, iOS 5