I've been wondering the same. I wonder if they just do some rudimentary packet inspection and drop packets above a certain size. My thinking being that short t

I've been wondering the same. I wonder if they just do some rudimentary packet inspection and drop packets above a certain size. My thinking being that short text messages result in very small packets, while large images will result in many large packets. Dropping large packets is most likely OK. I'd need to test this hypothesis by sending a very large text message (resulting in many large packets)