I'm currently working on a project based on raspberry pi. I have a PSTN line input to Raspberry Pi and I want to convert incoming analog call to VoIP. Then using a softphone application receive that call on mobile application.

What I want

I want to convert PSTN call to VoIP in real time using Raspberry Pi and after converting or before convering access information like Caller ID. So is there anyway I can accomplish that using raspberry pi without using external device?

I don't know much about telecommunication. So thought to put the question here. Thanks.



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