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 From:  Ugo Bellavance <ugob at camo dash route dot com>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: Traffic shaping, VoIP delays
 Date:  Fri, 16 Dec 2005 08:41:39 -0500
Soren Vanggaard Jensen wrote:
> Hi Ugo,
> The startup delay is probably caused by you ITSP or your VoIP device. 
> Try reducing the size of your jitterbuffer (i think sipura calls this 
> parameter "network latency").

I don't think I have access to this setting.

> Also make the VoIP rules tighter. Use something like
> match udp
> match packet size 0-500

I may try that, but I don't understand how this could help.  There 
shouldn't be any other traffic going from/to the MTA than VoIP.

> Finally you could try to reduce the MTU. This may however bust some 
> applications.



-> Please don't send a copy of your reply by e-mail.  I read the list.
-> Please avoid top-posting, long signatures and HTML, and cut the 
irrelevant parts in your replies.

> BR
> Søren Vanggaard Jensen
>> From: Ugo Bellavance <ugob at camo dash route dot com>
>> To: m0n0wall at lists dot m0n0 dot ch
>> Subject: [m0n0wall]  Traffic shaping, VoIP delays
>> Date: Thu, 15 Dec 2005 16:59:24 -0500
>> Hi,
>>     I'm using a vonage phone behind my m0n0wall.  When I call people, 
>> I don't hear the first seconds of the conversation (i.e. when they 
>> answer and quickly say "Hello...", I can only hear the "o" or just 
>> nothing.
>>     I tried something like this:
>> http://andersonfam.org/gallery2/d/13628-1/traf_shape.jpg
>> But it did not give any results.  I guess it makes sense since this 
>> reserves some bandwidth for VoIP only.  I have the problem even if my 
>> connexion is almost unused.  What should I do?
>> Regards,