Advice - Dial IP Modem Question

Posted on 2005-04-28
Last Modified: 2008-03-06
Hi guys,

First Ill tell you what Im trying to do, so hopefully you can offer some advice and maybe some products that would be able to do this.

We have some banking software that we would like to place on a Windows XP box.

Now this Windows XP box will NOT have a modem attached to it, but the user of this box will require the ability to dial the bank from this box. The reason this box will not have a modem is because it will be a virtual machine running on VMware ESX Server 2.5.

Now forget the VMware virtual machine stuff.

All I really would like to know,

1) Is it possible to reroute a com port to an IP address of a physical device such as a modem, so that then that modem will dial a number?

2) If so, what products are available to do this?

I have heard of something called a "digi " something.

Basically, when the banking software is loaded onto this XP machine with no physical modem attached, the banking software will ask for a modem connected to one of the com ports. Obviously, this wont be the case. But is there any way to FOOL the software into thinking that this ip modem is mapped to a com port on the XP machine, so that the user could create a dial up networking connection to the bank, point to the ip modem, which is mapped to a virtual com port, that the banking software can see?

Any help would be greatly appreciated.


Question by:Simon336697
    LVL 51

    Accepted Solution

    1) No.

    You're software is setup to connect to an analog line.  It's not possible to use a LAN to emulate a modem especially when the bank's side is an analog line.

    You'll have to install a modem or setup a shared modem pool.  I think what you are asking about is a Digiboard.  This is a server side piece of equipment (PCI card) that connects to a proprietary external bank of modems.  Their software provides the connection to the server to use the shared modem.

    You might be able to use a shared modem pool, but you still need a modem connection from some machine.

    LVL 51

    Expert Comment

    I found this:

    It sounds like it fits the bill.  It looks to be about $150.
    LVL 1

    Author Comment

    Thanks netman66
    LVL 1

    Author Comment

    Found the solution at, which does map a local com port to ip address.

    Thanks again.

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