sample Call Manager layouts

[victor]

Hi, I was wondering if someone could point me out to sample Call Manager implementation layouts.

Few days earlier, I was asked a really good question that I could not answer: when do we need to add a new call manager ? Can't we run all sites on one call manager?

I was looking through Cisco CCO for the document I saw a while back talking about campus call manager and different call manager implementations and layout, but could not longer find it.

Can someone please point me in the right direction?

Thanks,

Vic

[marinaibm · Accepted solution]

Hi Vic,

Here is the IP Telephony design guide..

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns268/c649/ccmigration_09186a00800d6805.pdf

You would like to add another callmanager for redundancy or because of the limitation to have a particular number of devices per server ( 2500 ip phones per MCS7835 server).

marina

[victor]

Thank you!!!

I know that everyone is talking about the limit of 2500 phones per server, but in real life, how many business really need that many phones?

Most of the business I see here would be lucky to have half of it... Is IP Telephony in U.S. that much more advanced than Japan?

[marinaibm]

Well, it's not just phones. All the conferencing, transcoding , mgcp gateways, softphones and many other resources have different weights, you will see that in the design guide...

Don't know what about the US, i believe it is..but in such a big country as israel we do have large deployments and there are many all around the world as far as i know.

marina