@dcitelecom wrote:
We have one route where our FreePBX/a2illing system validates calls with the CID of the caller.
Is there any way to protect the system against fraudulent calls from spoofed CIDs?
We only allow calls via the PSTN so hackers can't call our system for free
but I am wondering if there is anything else we can do.Any help and/or ideas would be greatly appreciated.
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