1301	6.5 Kbps Voice
1302	8.5 Kbps Voice
1303	5 Kbps Voice
1304	16 Kbps Voice
1311	For speech-based video over 28 Kbps and 56 Kbps modem connections.
1312	For speech over 14 Kbps modem connections, or speech-based video over Single and Dual ISDN connections.
1313	For speech-based video over 28 Kbps and 56 Kbps modem connections. If better sound quality is required, select the 6.5 Kbps Voice codec.
1314	For speech over 28 Kbps and 56 Kbps modem connections, or speech-based video over Dual ISDN connections.
1321	RealAudio 4.0
1322	RealAudio 4.0
1323	RealAudio 5.0
1324	RealAudio 5.0