2.2.1 The Common Message Header

All messages in the DirectPlay Voice Protocol share a common header, which is followed by a message-specific payload, as specified in the following sections. Some message types do not have any message-specific payload.

0	1	2	3	4	5	6	7	8	9	1 0	1	2	3	4	5	6	7	8	9	2 0	1	2	3	4	5	6	7	8	9	3 0	1
MessageType								Message-specific payload (variable)
...

MessageType (1 byte): An 8-bit unsigned integer representing a unique packet type that identifies the message. MessageType MUST be one of the following values.

Value	Meaning
DVMSGID_CREATEVOICEPLAYER 0x01	Add Voice Client Message (section 2.2.2.4)
DVMSGID_DELETEVOICEPLAYER 0x02	Remove Voice Client Message (section 2.2.4.3)
DVMSGID_SESSIONLOST 0x03	Session Lost Message (section 2.2.2.1)
DVMSGID_HOSTMIGRATED 0x0C	Host Migration Complete Message (section 2.2.4.5.2)
DVMSGID_SETTARGETS 0x0D	Set Client Voice Target Message (section 2.2.2.5)
DVMSGID_CONNECTREQUEST 0x51	Connect Request Message (section 2.2.3.1)
DVMSGID_CONNECTREFUSE 0x53	Connect Refuse Message (section 2.2.3.3)
DVMSGID_DISCONNECT 0x54	Client Disconnect Request Message (section 2.2.2.2)
DVMSGID_SPEECH 0x55	Speech Message (section 2.2.4.4)
DVMSGID_CONNECTACCEPT 0x56	Connect Accept Message (section 2.2.3.2)
DVMSGID_SETTINGSCONFIRM 0x58	Client Capability Confirmation Message (section 2.2.2.8)
DVMSGID_DISCONNECTCONFIRM 0x5A	Client Disconnect Confirmation Message (section 2.2.2.3)
DVMSGID_SPEECHBOUNCE 0x60	Speech with Bounce Message (section 2.2.2.7)
DVMSGID_PLAYERLIST 0x61	Voice Client List Message (section 2.2.4.2)
DVMSGID_HOSTMIGRATELEAVE 0x62	Voice Server Exited with Host Migration Message (section 2.2.4.5.1)
DVMSGID_SPEECHWITHTARGET 0x63	Speech with Target Message (section 2.2.2.6)
DVMSGID_SPEECHWITHFROM 0x64	Speech with From Message (section 2.2.5.1)

Message-specific payload (variable): A variable-length field the size of which depends on the type of packet designated in the MessageType field.