[cisco-voip] Redundancy -- Quality of Voice -- QoS vs RSVP

[Scott Voll]

OK, so I'm feeling a little behind the ball.  I've always had a hub and
spoke network, but now we are looking at redundant networks to keep up time
to the 5 9's or better.

I'm looking at using our internet connections via VPN to backup your current
MANs.

eg.  remote site -- MAN -- Hub
        | ---- Internet VPN ----|

beyond the Routing / VPN it sounds like I should be using RSVP rather than
CAC and QoS.  Has anyone setup RSVP?  I'm currently on CM 7.1 but If I'm
thinking correctly, I need 8.5 or 8.6 to get RSVP working with CM.

What other things am I forgetting?

What have others found with RSVP?  Good, bad, or other.

TIA

Scott
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