I would stick to the Hiper stuff, unless you are really looking for a deal. You need one HiperDSP for each PRI. A HiperARC is the terminal server/router that the HiperDSP modems are concentrated thru. 1 HiperARC is fine for at least 5 or 6 DSP's. I think you can even do more than that. Ultimatly, 3com hopes to be able to run an entire chassis off just one, and in fact that may work now (anyone know?).

Agreed. I am quite happily running 10 DSPs in a dual 130 amp chassis with 1 HARC but it is only doing dynamically assigned dialup IP. No routing protocols, no ISDN, no IPX. Matthew - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.