we have two BRI lines (NTBA) from a french Telco. Both BRIs are connected to a VIC-2BR on a 2801 Router.
The issue: both BRIs are in point-to-multipoint mode (Mehrgeraeteanschluss), that is an incoming ISDN call is
seen on both interfaces and the router will answere both simultaneously. The Telco switch rightly says: "Duplicate Frames....".
If I just connect one BRI line everything's fine (of course - apart form beeing able only to use 2 B channels instead of 4).
Does anyone know if it is possible to put both lines into operation?
Or do we need a different ISDN installation (Poitn-to-Point/Anlagenanschluss)