I have been trying to run two logical data sessions over single physical interface in GPRS/UMTS. I have PC-MobileTerminal-MobileAccessNetwork-PacketNetwork. Between PC and Mobile there is PPP connection. Using AT-commands I managed to setup two data sessions starting at the PC(from HyperTerminal) using AT-CMUX command. This command sets the mobile into multiplexing mode - ie. few data streams can be sent over PPP. My question is simple: how can I make use of those multiple data sessions from Linux? Regards Adam - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html