Pheromodem
From Mushpedia
Pheromodem
With this piece of research, humans can access and communicate in the
Mush channel. However, everybody's names are obfuscated and they appear as "mush" to each other. This does not apply to the
Mush themselves, who see everybody's real names.
When messages about infections appear in the channel, the names of the participants will be replaced by scrambled letters, with no clues to their identity except the time at which it happened.
Side note : As a human, if you lost your trackie/talkie and if the brainsync isn't enabled, you can't access the mush channel, even on the bridge. Human still is able to communicate in the mush channel with torn tongue.