[Asterisk-Users] VoIP experiences with Cable and DSL

[Chris]

----- Original Message ----- 
From: "Chris" <cshaw59 at comcast.net>
To: <asterisk-users at lists.digium.com>
Sent: Tuesday, August 03, 2004 7:48 PM
Subject: Re: [Asterisk-Users] VoIP experiences with Cable and DSL


> ----- Original Message ----- 
> From: "Steve Szmidt" <steve at szmidt.org>
> To: <asterisk-users at lists.digium.com>
> Sent: Tuesday, August 03, 2004 7:04 PM
> Subject: Re: [Asterisk-Users] VoIP experiences with Cable and DSL
>
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Tuesday 03 August 2004 09:47 pm, Chris wrote:
> >
> > The thing that really kills you on the ISP end is RED... it may be great
> > for large traffic but it just KILLS voip... and there's not thing 1 you
> the
> > customer can do about it...  :(
>
> Assuming you're talking about Random Early Detection, are you saying that
> all
> cable providers use it?
>
> No, not saying that, just that since it's so CPU friendly and can handle
> large bandwidth, it's an attractive choice... however because VoIP packets
> are so tiny and very latency sensitive, RED is their worst nightmare :(
>
>     -Chris
>
>

As the title of this thread is VoIP experiences with Cable and DSL...

My experience with Cable and VoIP has been positive. I DO use an external
cable modem with the infamous huge modem buffer and I find that I can set my
QoS to about 80% of full speed and greatly reduce packet loss and jitter...
So far when I ask people who I have talked to if they can tell it's coming
from the internet or if it sounds like a cellphone they can't tell the
difference... Mind you this is hardly a scientific test, and I do notice the
occasional dropped packet, but for the most part it works damn good... So
good in fact that I've dropped my telco completely and now have totally gone
to a SIP-based setup with *, using a cellphone only for 911 calls if needed
and in case the VoIP goes down...

That's just my experience, I hope it helps you...

    -Chris