Originally Posted by Ironman1075
This is really interesting because I had a 7130c and I was able to send MMS no problem. I got an unlocked TMO 8100 that Iíve been using with Cingular and never been able to send MMS. I spent endless amount of hours with every tier level of their technical support team and they were not able to resolve the problem. Nobody ever mentioned to me that they did not support MMS on the 8100 BB.
If I'm not mistaken (but I very well could be), your issue has more to do with the MMS settings the phone uses, and not whether or not Cingular supports MMS with the 8100. When sending and receiving MMS (or SMS) they go through Cingular's servers, and are directed to those servers when you hit the "send" button. Being a (unlocked) T-Mobile phone, it is probably configured to direct to T-Mo's servers. That being said, I don't have much of an idea as to where to tell you to look for these settings, or even if I'm right on this (this is my guess as to what the issue may be, having dealt with Nextel phones....unlocked Boost phones cannot send or receive SMS/MMS until the phones settings are updated to send to Nextel's servers instead of Boosts').....