I need to build an H.323 gateway with 8 FXO ports out of either a 2811 or a 2821 router. I'm having a hard time finding out exactly which combination of NM card(s), PVDM's, and VIC cards I need.
I was thinking if I used a 2811 with an NM-HD-2V, then I could add 2 VIC2-4FXO cards to it. That would probably be the easiest solution, but I'm not sure about the PVDM's. I don't think the NM-HD-2V has any PVDM slots. Are there some on the 2811 itself? If so, would a PVDM2-16 handle all 8 FXO ports?
I'm trying to keep it in a 2811 if possible, without going to a 2821.
Thanks for your help.