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TeamSpeak 3 Voice
Port 9987 is primarily used as the default UDP port for TeamSpeak 3 servers, facilitating low-latency real-time voice communication for gaming and online communities. Voice packets transmitted over this port allow users to communicate clearly and efficiently during collaborative activities such as multiplayer gaming sessions, streaming coordination, and virtual conferencing..
TeamSpeak 3 leverages port 9987/UDP as its primary channel for voice data transmission between the server and client applications. The use of the UDP protocol ensures minimal latency, which is critical for synchronous voice communication. Unlike TCP, UDP reduces the overhead involved in connection establishment and retransmission, allowing smoother, real-time voice streams.
Operating on this port, TeamSpeak 3 organizes client-server connections, managing codecs, user channels, permission structures, and audio packet streams. The server handles codec negotiation based on user settings to optimize bandwidth usage without sacrificing audio clarity. Due to the lightweight nature of voice packets and minimal acknowledgment requirement, UDP suits TeamSpeak's design priorities perfectly.
It's important to note that although port 9987 is unofficial and subject to overlap with other services (per IANA listings), it remains the de facto default for TeamSpeak 3 servers. Administrators may customize the port assignment if conflicts arise or based on network security policies.