SPONSORED LINKS
Here's 1 of my 3 cents worth: After much tweaking, I have found the following on my 701c running Win 3.11 with 24 megs ram: Downloading partially or heavily compressed files, the modem runs at the advertised 14.4 or so. However, if trying to download a large, easily compressed text file, the effective throughput can exceed 35kbs, sometimes reaching 40kbs! At times like these, I would hear a "click" - the sound of the line disconnecting. It would seem that at some point, the data just wasn't transferring fast enough to the processor (here my expertise runs out) and the line disconnects. The solution has been adding to the initialization code the string &q5. The modem default is &q6. By adding my string, the error protected mode changes from LAPM-V.42 to MNP and the compression from V.42bis to MNP5. Since making this change, I have not been disconnected during long downloads. The data transfer rate has not really been negatively affected, since those compressed (.zip, .gif, .jpg etc.) files still load as fast as they can at 14.4-16.0 kbs and the 'text'-type files load at a high limit of about 30kbs. For those interested, my dialup string to my service provider is: at&f&c1l2s0=0&b1&k3w1s11=40&d2s95=1&q5 (the s11=40 allows for really zippy dialing by reducing the time between dtmf tones, but you guys probably knew that.) Lastly, make sure the com port (usually com1) is set for Hardware Flow Control. Also, the baud rate here refers to the rate the com port unloads its data to the processor, so it *must* be higher than 14.4 - I use 38400 as the setting. (hmmm, maybe if I raise it even higher, I wouldn't need the &q5 string.... any experts reading this?) Hope this helps Howard Simson P.O. Box 2074 Toluca Lake, CA 91610 <howie@loop.com>