Re: Re: Are you interested in VoIP ?

["wayne" <wayne@xxxxxxx>]

Mmm - ok lesson to be learned - read the complete thred before posting a
reply in impulse!

but yes - I agree with Dean here...

(sorry for the double post!)
Wayne.

----- Original Message -----
From: "Dean Smith" <ukha@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Tuesday, March 11, 2003 6:47 PM
Subject: RE: [ukha_d] Re: Are you interested in VoIP ?


>
> To be meaningful any QoS policy has to be controlled and implemented
end
to
> end. Which is the key problem for the Internet - how do you get
thousands
of
> ISPs to agree a common QoS policy and if you did, doubtless someone
would
> sell its best QoS to everyone - rendering it meaningless. For some
packets
> to have priority - some have to be held back.
>
> I have heard real stories of customers asking for QoS to be
implemented on
> private Intranets  - so that they can have their mail traffic get
priority
> over browsing  - neatly demonstrating that one mans idea of whats high
> priority packetwise isn't everybody's !
>
> Implementing some local queuing/prioritisation strategies may make a
> difference to the affect local congestion on an access link has but
its
not
> an end-to-end QoS solution. Most of the examples of commercial VoIP
I've
> seen have tended towards the "make sure there's always more than
enough
> bandwidth + a bit more" school of QoS implementation ;-)
>
> Dean
> -----Original Message-----
> From: K. C. Li [mailto:li@xxxxxxx]
> Sent: 11 March 2003 18:26
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Re: Are you interested in VoIP ?
>
>
> On Tue, 11 Mar 2003, Keith Doxey wrote:
>
> > drops. To counter this additional information is added to the
packets
and
> > the routers prioritise this traffic to guarantee Quality Of
Service
(QOS).
>
> As far as I know, most commercial VoIP services don't have QoS
guarantees.
> For example, the BT VoIP service NetChat and the earlier SurfTalk
don't
> have any service or quality guarantees. I might be out of touch with
VoIP
> as the information was from over a year ago.
>
> Regards,
>
> Kwong Li
> li@xxxxxxx
> Laser Business Systems Ltd.
> http://www.laser.com
>
>
> http://www.automatedhome.co.uk
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