dial-up modem as a leased line modem

Firstly, why use the modems at all? Copper cable (RS232 wired) and 'crosscable' connectors will use the COM ports directly.
Windows Direct Cable Connection would do the software job, and allow file transfer and sharing.
Secondly, if the cable getstoo long (limit for crosscable might be 10 meters or so?) then indeed the modems would do. IF they can handle synchronous communication, and if you can figure out which cable and modem setup is needed exactly to do that - indeed the 'leased line' settings would come close.

But option 1. is quite a lot easier...

At your service,

- The Netherlands

An analog modem cannot be used on a leased line - you need a DSU/CSU at each end. If the range isn't far, you can use a long-haul modem (Black Box makes one). Either solution will be slow and less than convenient. If you are very close (within 100 M) you can install NICs in each machine and use an Ethernet crossover cable.

I've been fighting this battle for two years, as a 2-pair copper line is the best our telco has to offer. I think I must have read the same articles you have, as I wasunder the impression it would be easy. Then I found no option in WinNT to network via a serial line to a DSU/CSU. Since our locations are 6 miles apart, a direct serial connection won't cut it. I finally went wireless - it cost a bit up front, but quickly pays for itself, as the leased line costs $100/ month! Check out the Lucent Orinoco products at www.lucent.com for examples of wireless offerrings. CDW sells their products, so you can get an idea of the costs from their online catalog.
Good Luck!

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