[cisco-voip] Practical Limit on number of phones per server

[Matthew Saskin]

Maybe so - ask your SE very nicely to run some calculations with you :)

The short answer is that doing a calculation of the impact of all things on
a cluster is complicated and there aren't any (publicly available that I've
seen) formulas for doing so, it's all tied up in the sizing tool.

Having spent most of my career at non-partners, generally if you keep at
some percentage (say 20%) underneath the recommended maximums for an average
use cluster, you shouldn't run into issues (at least I never have).  Things
get more difficult when you have UCCX or UCCE in the mix, so keep that in
mind.

Matthew Saskin
msaskin at gmail.com
203-253-9571

July 18, 2010 - 1500m swim (in the hudson), 40k bike, 10k run
Please support the Leukemia & Lyphoma Society
http://pages.teamintraining.org/nyc/nyctri10/msaskin


On Fri, Mar 26, 2010 at 11:15 AM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

> dang. still partner access only i'm guessing.
>
>
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Cooking with unix is easy. You just sed it and forget it.
>                               - LFJ (with apologies to Mr. Popeil)
>
>
> ----- Original Message -----
> From: "Matthew Saskin" <msaskin at gmail.com>
> To: "Syed Khalid Ali" <syed.khalid.khursheed at gmail.com>
> Cc: cisco-voip at puck.nether.net
> Sent: Friday, March 26, 2010 10:32:25 AM GMT -05:00 US/Canada Eastern
> Subject: Re: [cisco-voip] Practical Limit on number of phones per server
>
> The number of phones supported on a given server platform is going to vary
> based on a numer of elements including gateway/endpoint count, route list
> count, CTI usage, etc.  To get a close feel, you should be using the
> CallManager Capacity tool or the new UC sizing tool -
> http://tools.cisco.com/cucst
>
> In practive, I've seen many customers with 5K+ phones registered to a 7845
> class server, they were very light in CTI usage however.
>
> Matthew Saskin
> msaskin at gmail.com
> 203-253-9571
>
> July 18, 2010 - 1500m swim (in the hudson), 40k bike, 10k run
> Please support the Leukemia & Lyphoma Society
> http://pages.teamintraining.org/nyc/nyctri10/msaskin
>
>
> On Fri, Mar 26, 2010 at 10:25 AM, Syed Khalid Ali <
> syed.khalid.khursheed at gmail.com> wrote:
>
>> Group:
>>
>> 1. What is the practical limit on the number of phones per server. Till
>> now the total number of end-point are 300 (approx)
>> 2. The datasheet states that 1000-phones per server are supported
>>
>> We are running:
>> MCS 7825-H2
>> CCM 4.2(3) [1-publisher, 1-subscriber]
>> IPCCX 4.0
>> - IPCCX is co-resident on Publisher
>>
>> --
>> Thanks,
>> Syed Khalid Ali
>>
>>
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>>
>
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