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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here

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To: Raymond Duray who wrote (8361)9/5/2000 11:40:52 PM
From: Raymond Duray  Read Replies (2) of 12823
 
"The Things Dick Tracy Didn't Suffer From" Dept.

This just in from Hong Kong:

americasnetwork.com

VOICE WILL LAG VIDEO ON 3G, HONG KONG TRIAL FINDS

A W-CDMA trial in Hong Kong by competitive carrier, New T&T, concluded that voice will lag behind moving images during video-conferences over 3G systems by as much as 2 seconds.

The trial successfully demonstrated circuit switched voice and packet oriented multi-media services running over the 3G air-interface. Samples of mobile radio interface signaling layer 3 messages and RF parameters were also measured for reference.

The test, conducted in Hong Kong, tested 2-way video conferences with the network speed set at 384kbps, 128 kbps and 64kbps. The test used Meeting Point version 3.01 for the trial.

New T&T said in a submission to the Hong Kong regulator, OFTA, that all applications ran smoothly on all three different network settings, but that "voice lags behind video by 1 to 2 seconds regardless of speed of transmission."

The report also found that most applications, including video conferencing, video streaming, and Web browsing worked over the lowest speed setting of 64kbps although quality was compromised.


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2 seconds! So much for full duplex conversations, over. Do I hear an echo around around here here?

Ray
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