Pascal,

When using ISDN as a WAN you might experience some seriouce performance problems. However, if you can adjust the functionality of you application you can implement it succesfully.

DO's:
Take as much advantage of rushmore by using existing indexes as you can.
Take the appriopriate steps to handle lost connections
(Illegal seek offset, File read error, File write error, etc)
When possible, Only use the connection the synchronize data, not to work directly with them.

Dont's
Open applications from the remote side. In stead: run them from your site and use the data from the remote site.
Expect the ISDN WAN is as reliable as a LAN network.
Use tables at the remote site longer than you need.

Succes,


Walter