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What firewall and network settings should be configured to support reliable VoIP traffic flow?
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Allow SIP signaling ports (5060/5061 for UDP/TCP/TLS) and RTP media ports (usually range from 10000-20000).
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Whitelist IP addresses of trusted VoIP providers to prevent unauthorized traffic or call spoofing.
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Use SIP-aware firewalls or session border controllers (SBCs) to track and manage stateful SIP sessions.
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Implement intrusion prevention tools like Fail2Ban or Snort to detect and block brute-force registration or SIP flood attempts.
What firewall and network settings should be configured to support reliable VoIP traf
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