I have an odd problem. My daughter has a Kajeet phone. They run off the Sprint network. Was an LG Rumor 2 which she broke. I switched to a flip phone, Sanyo Katana 2. Checking out everything I discovered it will not get mms-pictures- from a TMOB phone. I've experimented with different carriers. VZ, AT & T, and Page Plus. They work fine. I've tried three TMOB phones and I get an error message. The other odd thing is the TMOB phone can receive messages from the Kajeet phone.just can't send them. This makes little sense to me.