04-29-2013 09:44 AM
04-29-2013 11:43 AM
Remember what people call BIS is sometimes BIS-B, sometimes Direct TCP, sometimes WAP and sometimes nothing at all. And support for any or all of these depends on your country and carrier. So clarify the connection method you are using or attempting to use in all circumstances (working and not working) and the OS and carriers involved before doing anything else. Look for some clues in that information.