I'm evaluating CCM for 400 79XX devices initially with planned growth of another 100 79XX devices and 120 analog phones within 3-4 months of cutover. Total device weights for system after phase 1 & 2) will be apporximately 3500. Long range plans would add upto 4,000 more endpoints including about 100 seats of ACD. It's a critical care environment so availability is a must.
Am I better served to start out with redundant MCS 7835's and upgrade to 7845's when I need the additonal capacity or should I start off with 7845's?
Also, been reading a lot about services that should run on separate servers (MoH, Conferencing, TFTP, etc.). Any suggestions on best practice for these services would be welcome.
Thanks.