DuranSauer1.12.pdf, February 14, 2008
Mainstream Videoconferencing
[pages originally available on aw.com (Addison-Wesley)]
Book People, February 27, 1997
Videoconferencing Snapshot, January 30, 2002
| Circuit Switched | Packet Switched | ||
|---|---|---|---|
| Umbrella Specification | H.320 | H.323 | SIP |
| Minimal Connection | 2 B-Channels (128Kb) 16+Kb voice 100+Kb video | 256Kb "2X ISDN" | |
| "Good" Connection | 6 B-Channels (384Kb) 16+Kb voice 350+Kb video | 784Kb "2X ISDN" | |
| Audio Codec | G.711 (64Kb) G.728 (16Kb) | G.711 (64Kb) G.723 (6Kb) | |
| Video Codec | H.261 | H.263 | |
