Has anyone ever used an ISDN-BRI to create a VOIP network between two Norstar locations. The customer has a Innovaphone IP400 router that will accept ISDN lines and is looking to connect it to the Norstar via ISDN-BRIU cards. Since this will be a private network how do you set the SPID's up on the BRI card? I've done a ton of ISDN-PRI, but have never really dealt with BRI. What do I need to program to make this work correctly?