Simple Voice Chat server fork based on 2.6.25. It accepts protocol compatibility 18 (2.5.x clients) and 20 (2.6.x clients) at the same time. Clients remain unmodified; each player still needs a mod release for their Minecraft version. The plugin is compiled to Java 8 bytecode and runs on newer JVMs.

Architecture

The server negotiates the protocol generation during the existing voice-chat handshake and stores it with that player's 16-byte secret. The UDP path then uses AES-CBC for 2.5 clients and AES-GCM for 2.6 clients. Shared packet layouts are passed through the existing 2.6 voice routing. State messages are sent on the channel names expected by each client generation, so 2.5 clients receive their player and group-member updates as well. For compatibility 18 the server maps voicechat:state and voicechat:states to the older voicechat:player_state and voicechat:player_states channels. When a player leaves, it sends the disconnected state because 2.5 has no remove-state packet.

The Bukkit plugin source and API source are in source/bukkit/ and source/api/. The cipher and compatibility changes are in the regular source files for those modules.

Goxy

AsminVoicechat's integration with Goxy 1.15.0 has been checked. The original Simple Voice Chat 2.5 server plugin did not integrate correctly with Goxy; AsminVoicechat exposes the voicechat provider alias and supports Goxy's UUID shim on Paper.

Goxy is a revolutionary anti-bot/anti-DDoS proxy for Minecraft servers (goxy.io). I use it every day and recommend it. This is my own recommendation, and I am not paid to promote it.

Credits

Simple Voice Chat was originally created by Max Henkel and Matthew Wells. AsminVoicechat is an independent community fork, not an official release.

I think this fork is a good contribution to the community, and I hope the original author respects the work. If you have concerns, please contact hello@asmin.me so we can talk about them before any DMCA is filed. If you feel strongly about the fork, no offense intended, get in touch and we can try to work it out. Formal abuse reports can be sent to abuse@asmin.me.

Copyright (c) 2026 Asmin Studios (asmin.me) for the AsminVoicechat changes. All rights reserved for those changes. Upstream and bundled third-party rights and notices remain with their respective owners.