Hi Alfred …..im back again
i have got the sucessful out put for sending Text Message to different persons through GSM SIM300.Next i want to Send Voice Message from this SIM300 to the Mobile Phone .
For this i have considered “APR9600 Voice recording/playback IC”,Firstly i will record some predefine voice into it,then i will connect it’s output to the MIC input of the SIM300.
Further when i will give voice call to the user ,when it pickups the phone ,i ll play dis audio mesage …..
For this entire setup i have made one interfacing circuit ,i want ur lil help to know its correct or not …….wysiwyg_imageupload:6839:height=317,width=504