Traffic shaping ONLY deals with outgoing traffic, not incoming: you can't
prevent your correspondents from crowding out their voice packets with
other data traffic, because in that case the bottleneck is not under your
control. Most likely, their outbound bandwidth is insufficient (a common
case with Asymmetric DSL), and _they_ should perform traffic shaping. I
don't think that IMQ may achieve anything useful except in special cases
(e.g., when local resources like CPU, bus or disk are snowed under a
deluge of low-priority data); it can't possibly resolve congestion at the
sender's side.

Have you tried another correspondent, like e.g. www.freeworlddialup.com 's
echotest? If it sounds good even with heavy concurrent data traffic, your
shaping should be fine.

Enzo

----- Original Message ----- 
From: "Brian" <[EMAIL PROTECTED]>
To: "Discussion of AstLinux - Asterisk on Compact Flash"
<[EMAIL PROTECTED]>
Sent: Saturday, February 18, 2006 1:54 AM
Subject: [Astlinux-users] astshape doesn't seem to work

> I've tried and tried and can't seem to make the astshape work. The
> problem seems to be on the download side of the link which doesn't have
> much QOS. When I'm on the phone behind the astlinux I can place a call
> to someone out on the PST via my SIP provider. My voice sounds good to
> them but their voice is broken coming back to me. If I disconnect my
> data network from my LAN port and just run my SIP phone to the astlinux
> box it sounds OK.
>
> The Internet connection is a Sangoma PRI/T1 card.
>
> Has anyone tried compiling imq into the kernel and iptables for
> astlinux?
>
> --
> Brian
>
> _______________________________________________
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>
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