Hello, We are trying to set up an ISDN from China to US. In order to lower the ISDN charge, we'll put a BDC and an Exchange server locally. The concern is BDC to PDC and exchange servers sync will make the ISDN line up all the time. Any suggestions? Thanks in advance. Jim __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]