SEXI: Mostly Fact, A Little Fiction, Not Vicious Attacks Message Board

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Microcap & Penny Stocks : SEXI: Mostly Fact, A Little Fiction, Not Vicious Attacks

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To: matt kinnahan who wrote (7708)	11/23/1996 3:36:00 PM
From: Billy Bob Dupree	of 13351

SOE complies to all ITU-T standards. H.320 and H.261 the umbrella standard using standards based CODECs, T.120 for collaboration (with Smart 2000), G.711, G.723, G.728 (for audio compression). Look to the IMTC (International Mutlimedia Teleconferecing Consortium's Home Page for standards based issues) SOE/SEXI would not be a viable option to for anyone if they were not standards compliant. H.320/324 issures that Codec's of different manufactures (VTEL, CLI, PTEL for example) will talk and communicate to each other at standards levels. These include CIF, QCIF and the new Sub QCIF. Frame rates for 128 Kbps typically are 15 fps and at 384 Kbps 30 fps. SOE's line drivers can be adjusted so that they don't overdrive or underdrive the system. I seem to recall that the settings are at teh 1000 foot interval. Why don't most Bell companies recommend exceeding 1000'? Could it be that they don't have a way to do it yet? SOE delivers the video, audio, and controller via twisted copper pair UTP-3 and above. As I've stated before, Corel's limit was 150 foot and C-Phone 500 foot. Approaching T1 (1.544 Mbps) you get near broadcast quality, but anything above 25 fps is full motion. T.120 is still not fully accepted and unlike H.320 for codecs, not all vendors have the same collaborative systems. This is not a SOE issue but an IMTC and ITU-T issue. I figure that by end of 2d Qtr 97 all vendors will be standards compliant with a unified cross platform T.120

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