help please, how to send/receive data using AT command set?

[jimjimjim]

hello
i have been written a program in J2ME(java microedition) for a mobile device with MT6225 processor for communicating to PC by using the COM4 serial port. when i used hyper terminal to test the app for send and receive, nothing showed up on hyper terminal window or mobile lcd. i have no error in my app. so i went to google and found that the mobile communicates to PC using the AT command set. so is it possible to use this command set for data transmition? e.g. AT+CSNS=4;[a string like "hello" here]

 

[srizbf]

set hyperterminal for com4 and same baudrate , no.of bits etc as that of mobile.

then send:
AT+CGMI

you should get the mobile manufacturer name as reply.