Hail! sorry for posting in english...please ignore me if this boders you! so... i have a isdn dialin server (suse 7.3, syncppp) and i'm using i4l package! i am trying to configure this server to give the second 64k channel to a user! i've added slave interfaces, +mp option... and alll works fine at a first look: the client connects ... at the begining he has one channel and if he needs more bandwidth his isdn NTU will use the second channel ... another conection is made on a slave interface in my server ...and everybody seams to be happy!.......but if he uses a single channel and another isdn client wishes to log in my server will answer with the slave interface and .... both clients will be disconnected! so...what i want is to make the slave interafce to respond on a incoming call only if it is made by the user that is already connected on the master interface! any clue? -- eng. Adrian Costescu