VB2003 can be used to write a program on the wm5 phones can achieve the conversion of a double number (line 1, line 2) card?

            


Or how we read with VB2003 programming currently using Line 1 or Line 2.
The best source for a while ah.
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I do not know, csdn be closed down, Jietie it Sectional gave me
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Where there are a number of sim card dual card sell? Mobile has it?