Hello, I have an asterix installation with one ISDN BRI card. I setup a ring group with 2 extensions for the inbound calls. When an extension receives a call, I want the other one not to be able to receive more calls. I want this because I have one person who uses the 2 extensions (2 phones in 2 different rooms). I tried all the ring strategies, but with no luck. Actually, what I trying to do is to simulate the old 'Duplex' PSTN function Could you please help me? PS: The ringall-prim is the closer to what I want, but again this happens only for the first extension in the ring group.