What is the best customer premise solution for Metro-E connection? I am geting conflicting recommendations - If you have over 40 MAC addressess, use a router; less than 40, use a switch?

I am looking for the proper command detail on authenticating voip using AAA.I am stuck ataaa authentication login _______ radiusWould I use H323 or VoIP? Where would I find reference?

Has anyone attempted to configure a 2610 router (NOT 2610XM) with WIC-1DSU-T1 (frame relay connection) and using a WIC-1ADSL as back-up with auto fail over if frame goes down? Also, is there a way to accomplish load balancing?

Can I load share between these two interfaces and have ADSL interface brought on line when utilization of WIC-I1 reaches x %?

I need to know if the Intuity voicemail can support two (2) different vendors PBX at the same time? Say a Definity G3 and CiscoCallManager/Unity VN integration? I want to keep the Intuity VM connected to my G3 and maintain users on that system, but I...