Does anyone know the issues involved with direct mobile-to-mobile transfer using J2ME sockets, without going through a web server? (e.g. signing, specific ports, access point).
I had success with the following (all using socket connections):
- Mobile-to-mobile (J2ME client server) on an emulator
- Real Nokia mobile client (J2ME) to PC-based server (PHP, Java, etc)
both the above using port 5000. I discovered that port 8080 does not work.
But when I tried doing real world mobile-to-mobile, I get the dreaded error:
[java.lang.SecurityException: Target port denied to untrusted applications with untrusted midlet]
If anyone was successful with this, I would be grateful if you could post some information.