Self-hosted VoIP server: Asterisk and FreePBX
Run Asterisk or FreePBX on your own VPS: SIP trunks, RTP port ranges, the firewall rules that keep scanners out, and how toll fraud starts.
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Run Asterisk or FreePBX on your own VPS: SIP trunks, RTP port ranges, the firewall rules that keep scanners out, and how toll fraud starts.