[Asterisk-Users] Problem Making a SIP call over a long latency network - Call rejected: 407 Proxy Authentication Required

[Craig]

Hi Aram,

Think you will find it is something to do with ports etc....

We log soft phones, spa-841, grandstream and sipura ata through a
satellite link that regularly drifts out to a latency of 1000ms ++ and
do not see any problems with *.

However some of the links we have used are into port blocking and
stateful packet blocking. Suggest this would be most likely your cause. 

If you can, run it through a vpn over the same link and see if the
problem persists, this will make life very simple.

For those that think a 100ms is long latency, I have seen our link drift
out to 1200ms latency with 100ms of jitter and still work, does start to
get a bit crappy though!

Craig.




Message: 28
Date: Tue, 22 Mar 2005 00:43:35 -0800
From: "aram" <aram at hi-teck.com>
Subject: [Asterisk-Users] Problem Making a SIP call over a long
	latency	network - Call rejected: 407 Proxy Authentication
Required 
To: <asterisk-users at lists.digium.com>,	<asterisk-dev at lists.digium.com>
Message-ID: <auto-000003091938 at hi-teck.com>
Content-Type: text/plain; charset="us-ascii"

 

Hello,

We are getting error: Call rejected: 407 Proxy Authentication Required -
if
a user is trying to call using * over a long latency network (around 600
ms).  There is no problem when the same user is trying to make a call
with
low latency network (around 300 ms).  I have included the debug and log
messages for Asterisk.  This call is done with SJphone, the same problem
exists with ATA; however X-Pro is having no problem.  Similarly if the
user
is not authenticated - the call goes through fine. 

            Is * timing out waiting for some response - if so how can we
increase the timeout?  We are also thinking of possibility that some
port is
closed over the long latency network that causing this problem - is that
possible -if yes, which port would that be?

            Or is there another issue that we are not aware of?

 

            Thanks,

            Aram