[Asterisk-Users] What is acceptable network latency forvoipconnection?

Robert Augustyn augustynr at yahoo.com
Sun Jan 9 20:18:11 MST 2005


Thanks,
So what are the fresholds of the jitter, delay, and
packet loss I should be asking my ISP for?
robert

--- Damon Estep <damon at suburbanbroadband.net> wrote:

> In the real world (or at least in my world) we use
> undersubscribed
> internet connections that come with a service level
> agreement (SLA) that
> guarantees that the jitter, delay, and packet loss
> with be within
> defined parameters in the service agreement.
> 
> With most DSL and Cable you will not get a SLA, with
> the cheapest T1s
> you might get one, but the only penalty to the ISP
> if they do not meet
> is a bill credit not to exceed some low $ figure.
> Read the SLA and
> understand it before signing, and them hold them to
> the deal. A good SLA
> states that if they don't meet the SLA (some
> percentage of the time) you
> don't pay.
> 
> We use pingplotter, not sure if there is a Linux
> version, but I think
> there is. Should not matter though as long as you
> have at least one
> windows box on the network (and who doesn't?). Tune
> it to emulate you
> RTP stack (you will need to do some web research to
> learn how to do
> that).
> 



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