one simple Ivr system platform  can be constructed by four component：

1：input DTMF digit[play file，receive DTMF to a buffer or a file]

2：visit customer database or table

3：assign table field values  and prepare a voice file to play

4：TTS play files and strings

1：

2：

3：

4：

The sample with components above is  simple and real application. users can arrange ag32 components to design complicated IVR solution with unlimited layers。

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