search for: 4xisdn2

Hi list, I am in the process of setting up Asterisk for a new office and since this is going to be my first "real" installation I'd appreciate some advice on the hardware from the real world. We will have 8 channels (still not sure if 4xISDN2 or ISDN30 8 channels, but I will definitely go for a Digium card with echo hw cancelation) and a DSL 2mbit line (QoS on the switch and firewall?), to be configured for both traditional and VoIP usage . I was looking at the Xorcom TS-1 server and I was wondering if you would recommend it for a 3...