:476
(TCP/UDP)
Low Risk
TN-TL-FD1
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TCP/UDP — Messaging
Port Overview
Port Number
476
Service Name
TN-TL-FD1
Transport Protocol
TCP/UDP
Category
Messaging
Security Risk
Low
Port Range
Well-Known (0-1023)
What is Port 476?
Telephony Network Full Duplex 1. Full-duplex telephony protocol for simultaneous voice communication.
TCP/UDP
Messaging
Security Considerations
Port 476 (TN-TL-FD1) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.
Recommendation: Standard security practices apply. Keep software updated and monitor access.