[Pawnie]

Код:

audiomsgoff - If this option is set to 1, no Audio Stream: messages will be displayed in the chat window when the server requests the client to connect to an audio stream. This option is enabled/disable with the client-side /audiomsg command.

as I know, cannot be set client sided

Maybe put a textdraw?

EDIT: I just noticed, maybe this can help
https://sampforum.blast.hk/showthread.php?tid=82162