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Editorial Team
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Asked: 2026-05-25T15:57:13+00:00

I am working on an application, using java, that has the following features: User

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I am working on an application, using java, that has the following features:

  • User connects his mobile to a PC using a usb cable or bluetooth.

  • User types a message on his PC (in the textfield provided by my software).

  • User types a phone number (in a textbox provided by my software).

  • User clicks the send button.

Then, the software should send the message to the specified phone number and appropriate charges should be applied to my mobile balance. In other words, I am directing my mobile through my software to send message to a specified number.

How shall i do that? Is core java sufficient for this purpose or i have to use j2me or is there any particular java framework that would be suitable for this?

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  1. Editorial Team

    One option is to connect the phone to the pc using serial link (COM). Need to configure the phone connected physically by USB or Bluetooth in order to appear in a COM (serial) port.

    Then you need to create an application for PC (Java or whatever can open serial ports) that opens the COM port used by the phone and send the proper AT commands. Serial port can be opened by JavaComm 2.0 Win32 or more recently RxTx.

    Open the serial port and write and read command by writing and reading bytes, in the same way a socket.

    Then create a visual application that let user set the information like phone number for destination, text…

    You need Java SE or whatever language allows you to create visual applications and opening serial ports (Java, .NET, Python…).

    Some links about AT commands by serial port in Windows: 1, 2, 3.

    Another option could be using native API from the mobile OS through a socket, but seems complex and using AT commands and serial port should work for all phones and the only problem is connecting the phone by serial over USB or BlueTooth and managing the serial port.

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