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Hey yall!
I know this is prohibited and unethical!
But when I was small one of my uncle's friend made a circuit which can receive signals of telephone conversation of a fixed phone (PSTN) to a mobile phone (GSM). I remember ones he let us use that machine. It was connected to a PC desktop speaker. Was not much interested those days but now when I wanted to try it since I'm studying telecommunications, I couldn't find any info about such a cct.
One of my friends told me that I need a GSM module for this! But he doesn't have any idea what we're to do with the module :/
So any expert could please help me on this?
Regards!
I know this is prohibited and unethical!
But when I was small one of my uncle's friend made a circuit which can receive signals of telephone conversation of a fixed phone (PSTN) to a mobile phone (GSM). I remember ones he let us use that machine. It was connected to a PC desktop speaker. Was not much interested those days but now when I wanted to try it since I'm studying telecommunications, I couldn't find any info about such a cct.
One of my friends told me that I need a GSM module for this! But he doesn't have any idea what we're to do with the module :/
So any expert could please help me on this?
Regards!
