ip telephony solution and best design required

[johntim20]

I have a client looking for an cisco Ip Tlephony solution in their company for 10000 users based on this requirement i have requested for the MCS7845I3-K9-CMD1, MCS7845I3-K9-UCC1 with cucm8.6 ,cisco unity connection 8.6 i would like to know the best design for this many users i am prifering this server because i reade in the CUCM8.6 documentation that this model server supports upto 10000 OVA equivalent or Maximum endpoint per server/OVA Template so 1pub ,1 sub is enough or 1 pub/TFTP  2 sub i will be very much thankful for your quick response. thanks in advance..

[skilambi]

You need to look at UCS not mcs servers since the ova templates you refer to apply to those models not mcs servers

Thanks

Srini

[johntim20]

Which model of UCS server i have to select or prefer as per this requirement as i am new to UCS and also can u please provide me the list of how many servers that each UCS server support i mean capcity and also admin guide links.Thanks in advance.

[skilambi]

It's a loaded question, one can start at tools.cisco.com/cucst and that will help you size your cluster. If let's say you need 1 PUB, 2 TFTP a couple of SUB, then look at the docwiki site

http://docwiki.cisco.com/wiki/Unified_Communications_Virtualization_Downloads_(including_OVA/OVF_Templates) and based on the applications you are choosing spread them across your UCS servers for redundancy. The site is a good starting point for that.

You have B series, C210, C210 with 12 core that can fit more applications, C260 and so on. There is also spec based, the link above has the information you need

Srini

[johntim20]

Thanks for your help.

[johntim20]

One more question How many Voice gateways do i require for 10000 users?  i have seleceted CISCO3945-V/K9 is this sufficient for this many users or else i need to have around 6 CISCO3945-V/K9 voice gateways.

[skilambi]

That would be based on many factors such as trunks termination needs(PRI/SIP/FXO/FXS), SRST count, transcoding/conferencing needs, WAN termination if happening on the same device and of course load balancing/redundancy. Based on that the right device needs to be selected.

Thanks

Srini

[johntim20]

what about Vmware do i need to include this in my BOM ex:VMWARE ESXi 4.0  or 4.1 STANDARD (4 CPU), 1 YR SUPPORT REQUIRED

[skilambi]

Yes either through Cisco or directly outside Cisco. The doc wiki link has all the information you need.

Thanks

Srini