USSD Menu Browser in Java

I want to create a simple USSD Menu Browser Application in Java. I have integrated with one of the开发者_JAVA技巧 Mobile operator to get the USSD Platform. And i have successfully implemented & tested USSR message pushing. But not able to get started with USSN (Menu Browser) in java. So please help me how to get started with simple USSD menu browser application.

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You can use a modem with AT commands.

You need 3GPP TS 27.007 (search in google for latest version), command called CUSD.

Send something like this AT+CUSD=1,AA180C3602,15 which means

• 1 - I want to read result,
• AA180C3602 - *100# (GSM 7bit) (http://engnick.blogspot.com/2011/09/gsm-7bit-part-of-pdu-packencoding.html),
• 15 - encoding type particular to PDU.

You'll will receive as a response like this: +CUSD: 0,"00390030002C003000320020044004430431002E002004210443043F043504400410041E041D0020043E043F0440043504340435043B043804420020043D043E043C04350440043000200437043000200033002C00350440002F043400210020002A0035003000320023",72 , where

• 0 - ok,
• "..." - text in UTF-16 and
• 72 - encoding type.

If your response requires an answer (menu mode), you will see 1 instead of 0 in first parameter. Just send expected number and you'll support this session (AT+CUSD=1,31,15 - for sending a number 1).