Follow these steps to optimize your TP-Link firewall for VoIP services, ensuring stable connections and minimizing disruptions.
🚨 SIP ALG can cause intermittent VoIP issues. Disable it as follows:
✅ Navigate to "Transmission" > "NAT" > "ALG" Tab.
✅ Uncheck both "H.323 ALG" and "SIP ALG".
🚀 Prioritize voice traffic to ensure high call quality.
✅ Navigate to "Transmission" > "Quality of Service (QoS)".
✅ Enable QoS for port 5060.
🛠️ Use reliable DNS servers to minimize SIP registration disruptions.
✅ Navigate to "Network" > "WAN".
✅ Set Primary DNS to 1.1.1.1 (Cloudflare).
✅ Set Secondary DNS to 8.8.8.8 (Google).