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[moved] problem in playing audio in gsm sim900A

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JanaPriya

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I am using simcom sim900A module to make call to a phone number.Making a call is not a problem.I am struggling with playing an audio while the call is attended at the other end.I am using APR33A3 in which i have recorded the audio.I don't know which command must be used for playing the audio when the call is attended.

The connection between GSM and APR33A3 is as follows
the speaker pins are connected to mic input pin of gsm
 

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