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We are looking for someone who can develop a system that can unmask caller id of blocked calls, for better understanding of what we want, we will try to give you a pratical example.
Our goal is to have a system that can do the following:
A (cellphone or landline) calls B (another phone user) with blocked caller id, B rejects or receive the call and it will be forwarded to an asterisk box (or something like TrapCall App) that can be capable to show the hidden number of A and send an SMS to number of A with details of B(Number phone).
Please bid only if you can complete this project.