[Asterisk-Users] Jitter over Sat

[Storm D. J. Petersen]

Hi,

Thanks, I'll try to do a GSM Bridge call today.  I understand your answer
for why voicemail - as in it does not require realtime processing, but what
about the echo back test?  When I use echo back tests on other * servers or
FWD I sound perfect - less some latency.  Surely echo back is in realtime?

Thanks again for your suggestion.

Kind regards,

S.
-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of
steve at daviesfam.org
Sent: Tuesday, August 31, 2004 11:16 PM
To: stormp at telus.net; Asterisk Users Mailing List - Non-Commercial
Discussion
Subject: Re: [Asterisk-Users] Jitter over Sat


On Tue, 31 Aug 2004, Storm D. J. Petersen wrote:

> I have a problem with jitter over a 2mb up 1mb down satellite connection.
I
> call my friend over the satellite - I call perfect but they cannot make
out
> a word I say. However if I leave him voicemail on his asterisk box, it
> records my voice perfect.  I have this problem when calling other people
as
> well.

It sounds like you just don't have enough throughput in the one direction.
Voicemail is fine because it doesn't need "realtime" capacty - the voice
frames arriving from your side go into the captured file as they arrive,
doesn't matter if your 10 second message takes 20 seconds to arrive...

You could try using a lower bandwidth codec like GSM if you aren't
already.

Steve

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