The following International Telecommunications Union (ITU) specifications and Networking Group RFCs provide detailed information about T.38 facsimile, RTP, and voice media coders:
|
Document |
Description |
Date |
|
ITU-T Recommendation G.711 |
Pulse code modulation (PCM) of voice frequencies |
1988 |
|
ITU-T Recommendation G.723.1 |
Dual rate speech coder for multimedia communication transmitting at 5.3 and 6.3 kbit/s |
1996 |
|
ITU-T Recommendation G.729 |
Coding of speech at 8 kbit/s using conjugate structure algebraic-code-excited linear-prediction (CSACELP) Annex A: Reduced complexity 8 kbit/s CS-ACELP speech codec |
11/96 |
|
ITU-T Recommendation G.726 |
40, 32, 24, 16 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) |
12/90 |
|
IETF Internet RFC 1889 |
A Transport Protocol for Real-Time Applications |
1/96 |
|
IETF Internet RFC 1890 |
RTP Profile for Audio and Video conferences with Minimal Control |
1/96 |
|
ITU-T Recommendation T.38 |
Procedures for Real Time Group 3 Facsimile Communications over IP Networks |
6/98 |
|
IETF Internet RFC 2833 |
RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals |
5/2000 |
|
IETF Internet RFC 2464 |
A Method for Transmission of IPv6 Packets over Ethernet Networks |
12/1998 |