SIP TrunkingFAQsWhat Should I Do If Port 5061 Is Blocked?Answer If you're experiencing blocked access, you can connect securely using TLS transport over alternative ports. Alternative Connection Method Details: Protocol: TLS Primary Port: 5061 Backup Port: 5065 (use it if 5061 is blocked). Updated 1 day ago Which Ports Should I Allow for CommPeak VoIP Services?What Are STUN and TURN in SIP?Did this page help you?YesNoCopy PageAnswer