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

[Lelio Fulgenzi]

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.

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Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
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"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
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