3.1.5.3.4 Sending a Speech Message
The structure and fields of the Speech Message are specified in section 2.2.4.4.
When the Speech Data Transmission Timer expires, if a voice burst is active, the next speech message is sent. The Speech Message is sent directly by the voice client to the voice clients in the Current Voice Target List. Speech Message SHOULD NOT be sent before the Voice Client List Message is received. Speech messages SHOULD NOT be sent after the Client Disconnect Request Message is sent to the voice server.