[cisco-voip] requirements for WAN link with centralized deployment

[John Neiberger]

Look in the Cisco IP Telephony Solution Reference Network Design
(SRND). It's in the section called "Clustering over the WAN". That's
probably a very good document for you to read through prior to making
any decisions.

On 9/11/06, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>
> Do you know if this is written down anywhere? We are writing up specs for
> our remote sites and I'd like to include a reference where possible.
>
>
> --------------------------------------------------------------------------------
> Lelio Fulgenzi, B.A.
> Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "I can eat fifty eggs." "Nobody can eat fifty eggs."
>
> ----- Original Message -----
> From: John Neiberger
> To: Lelio Fulgenzi
> Cc: cisco-voip at puck.nether.net
> Sent: Monday, September 11, 2006 11:06 AM
> Subject: Re: [cisco-voip] requirements for WAN link with centralized
> deployment
>
> > Just wondering if there are posted requirements for WAN links with
> > centralized deployments. I know that I've read somewhere about "if you
> want
> > to have a offsite subscriber you have to have Xms with X delay, etc. etc.
> > etc." just wondering if there is something similar when you are hanging a
> > phone on the other end and it is talking to other phones and subscribers.
> >
> > I recall a small app you could run on a router that would do some tests.
>
> The phones aren't a big deal. As long as your one-way delay isn't over
> 150 ms or so, you should be fine. As I recall, the maximum
> *round-trip* delay over a WAN for a subscriber is 40 ms, which is
> pretty stringent.
>
> John
>