As you konw, in the regular PC, in our java program we can get unique number, for example, CPU serial number or MAC address, to control license. In the cell phone, does it have some unique number in it ? if yes, J2ME has some API to control it ?
you mean as in control meaning program will run if licensed and not run if not?
In MIDP2.0 you can generate a unique certificate per license for the jar/jad that the phone user/consumer downloads from your site
In MIDP1.0 we do not have this feature so some Mobile Operators use reverse billing to associate the UEI number gained from sending a sms to user and having user confirm..
The best way to find out is to go the developers website of the mobile Operator you are targeting and read their spec on this as some Mobi e Operators use vastly different strategies.. [ November 07, 2004: Message edited by: Fred Grott ]