OK, What, I am trying to say is that there is some confusion here.
JSRs at the JCP(
Java Community Process) site.
JSR stands Java Specification Requests, and isn't directly related to SMS. Now SMS is part of a specification that was a JSR #, but saying SMS vs JSR is comparing two totally different things.
Here are some SMS articles that might help.
receiving SMS on Mobile device. link to two other article links.
Good Luck
Mark