Help on cellphones applications ...please...

Hi.
I am intending to develop an application to be run on your cellular phones..
Currently I have an algorythm and a prototype written in Visual Basic. Of course, that prototype cannot be run on a cellular phone.
I thought the most useful tool to transform the application into was J2ME.
I know Java , but at a beginner level. I do know C and C++.
My problem is that I have talked with a J2ME expert, who persisted on claiming there is no way to matrialize the algorythm on J2ME,
due to the fact that I must have my application running (even in the background) while the user of the cellular phone performs a phone (vocal) call.
The expert said J2ME won't allow two applications ("my" application and the "phone call" application) to run parallely (at the same time) on the cellular phone,
and in such case "my" application would be terminated (Destroyed or Paused).
To be specific � he said I can't control the microphone from "inside" my application (while it is running). I actually wanted the pressing of the �send� button (commencing a phone call) to be the trigger which causes my application to start,
and terminate my application when the call is over. The expert said the call is controlled by the operating system of the phone,
while my application is another entity, and these two cannot function together at the same time.
It doesn't sound logical to me that it is not possible to run another application together with the phone
call, while the latter takes place. Perhaps I need to look for a Java solution?
Would you please consult me about that?
Please be noted that "my" application is relatively small, and uses the minimum resources needed.
I need a general explanation refers to how I can run these two applications at the same time, and a proposed tool (language) to use.
Thanks in advance,
Eyal.

Have you checked the J2ME forum? Also, try searching the forums for similar problems.
-Tim

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