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Need Help for voice call with SIM300S

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knavachaitanya

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Hi everyone
i am new to programming
i have SIM300S GSM Module and i want to make use of the SIM300S for voice calling
can i use this SIM300S for voice calling?
without any micro controller can i use this GSM Module for voice calling feature?
Please anyone Help me
 

Hi Jayanth
can you plz tell me the procedure
i am new to programming and i want to use for voice calling

i have sim300 with me and i have connected the power supply and sim connections
thing is how to make voice calls from this gsm module
 
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Have you already reviewed the hardware manual how to connect microphone and speaker?

Refer to the description of ATD command how to setup a mobile originated voice call.
 

Thankyou FvM
but i want to know that
how to connect to pc
and how to use commands for hyper terminal
please help me
 

Without connecting to microcontroller or PC you can only receive calls to GSM SIM300 from another phone or mobile but you cannot make calls. To make calls from GSM SIM300 you need to connect to microcontroller or PC to issue the ATD+xxxxxxxxxxx; command for voice calling. Even a tiny micro with 8 pins and UART is enough to send the command to GSM module or else PC can be used.
 

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