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Mac Forum / General / Networking / March 2005advantages of V.92
Two months ago I was advised to upgrade to V.92 because it's more stable than V.90. Then I read of other advantages: quicker connections, faster uploads, and sometimes faster downloads. I bought a V.92 modem yesterday. Then I found that my new modem is running V.90 because none of my dialup numbers has been upgraded. My ISP says V.92 would have no advantage except the ability to take phone calls. Is that true? > Two months ago I was advised to upgrade to V.92 because it's more stable > than V.90. Then I read of other advantages: quicker connections, faster > uploads, and sometimes faster downloads. In a nutshell that's correct. V.92 does permit quicker handshaking, the _maximum_ upload speed is raised to 48 kbps from 33.6 kbps, and because V.44 compression is better than V.42bis, in theory uncompressed files may also download faster. > My ISP says V.92 would have no advantage except the ability to take > phone calls. Is that true? Practically for most phone lines, I suspect your ISP is correct. But the added advantage of taking and making calls while you're online is huge, and that alone would be sufficient incentive for me to use an ISP that supported V.92, if I had to use a dialup connection. Beverly  SignatureMany a smale maketh a grate -- Geoffrey Chaucer > > Two months ago I was advised to upgrade to V.92 because it's more stable > > than V.90. Then I read of other advantages: quicker connections, faster [quoted text clipped - 9 lines] > > Practically for most phone lines, I suspect your ISP is correct. The quick connect is supposed to work regardless of connection qualtiy. The modem remembers what's negotiated when you dial a number. If you dial the number again and the line seems to have the same characteristics, it skips the negotiations. I've read that in tests of actual phone lines, V.92 downloaded 60% faster than V.90. How about stability? I read in this forum that a V.92 connection is less likely to disconnect? One thing bothers me about my new modem. It takes 20 seconds to hang up. I don't know why it's necessary. My old modem had a script that would hang it up in two seconds or so. When I go offline, I probably want to put my computer to sleep and go do something. I don't want to wait 20 seconds. Choreboy |
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