[cisco-voip] CCM as hosted solution: BW requirement

[miguel]

Hi Ed,

    thanks for the answer. Your equation was very useful.

Miguel

Ed Leatherman escribió:
> Hi Don,
>
> *Equation 1:* Recommended Bandwidth Needed for Control Traffic without 
> Signaling Encryption.
>
> Bandwidth (bps) = 265 * (Number of IP phones and gateways in the branch)
>
> Plus you need to plan for your RTP streams (audio).. but this depends 
> on alot of things like where those phones are going to be talking to, 
> what codec you are using, etc - so theres not just 1 formula.
>
> There are also other things to consider besides just the bandwidth.. 
> example latency for the control traffic, packet loss/latency/jitter 
> for the RTP traffic. The SRND documents are a good starting place. 
> www.cisco.com/go/srnd <http://www.cisco.com/go/srnd> (thats where the 
> above equation is from)
>
>
> On 7/5/06, *don_miguel at chile.com <mailto:don_miguel at chile.com>* 
> <don_miguel at chile.com <mailto:don_miguel at chile.com>> wrote:
>
>     Hi,
>         I'm working on a project to give VoIP services with a CCM located
>     outside of the office... in fact at a different country. Does naybody
>     knows how much BW do I need at the CCM site for a 300 IP Phones
>     community?
>
>     Thanks in advance!
>
>
>     -----------------------------------------
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>
> -- 
> Ed Leatherman
> IP Telephony Coordinator
> West Virginia University
> Telecommunications and Network Operations