New subject: [Serusers] Call connections take too long

22 Dec 2003

      Hi!
Sorry, I haven't understand your setup! Please take a look at the
follwing figure. Where is the great delay? Between which messages?
UA 1                    proxy                      UA2
 |                        |                         | 
 |1. INVITE               | 2. INVITE               | 
 | -------------------->  | ----------------------> | 
 |                        |                         | 
 | 4. 180 Ringing         | 3. 180 Ringing          |
 | <-------------------   | <---------------------  | 
 |                        |                         | 
 |                        |                         | 
 | 6. 200 OK              | 5. 200 OK               | 
 | <--------------------  | <---------------------  | 
 |                        |                         | 
 |                        |                         | 
 | 7. ACK                 | 8. ACK                  | 
 | ------------------>    | --------------------->  |
 |                        |                         | 
 |                        |                         |
regards,
Klaus
...
-----Original Message-----
From: jerk face [mailto:jerkface2098@yahoo.com] 
Sent: Monday, December 22, 2003 9:01 PM
To: Klaus Darilion
Cc: serusers@lists.iptel.org
Subject: RE: [Serusers] Call connections take too long
My setup:
I use a proxy for dialing.  The proxy has a static IP
address.  The callee can be behind a NAT or on a
static IP address and the call will take a long time
to connect.  
I have watched the traffic at the caller end and it is
the same (long pause).
Any other possibilities?
Thank you for your time.
--- Klaus Darilion darilion@ict.tuwien.ac.at wrote:
...
That all depends on your setup.
Do you use direct IP dialing or do you use a proxy?
Where is the proxy -
in your local network or somewhere in the public
internet? Where is the
callee located - same network or somewhere else? It
might be also useful
to watch the network traffic at the callees site and
at the ser proxy.
Klaus
...
-----Original Message-----
From: jerk face [mailto:jerkface2098@yahoo.com] 
Sent: Monday, December 22, 2003 6:23 PM
To: Klaus Darilion
Cc: serusers@lists.iptel.org
Subject: RE: [Serusers] Call connections take too
long
...
I ran ngrep -d eth0 X.X.X.X (Where X.X.X.X is my
IP
...
address) and I didn't get a lot of DNS queries.  I
couldn't see any activity on my IP address until I
heard a ring (after about 15-20 seconds).
What would be some other causes for this problem?
Thank you for your time.
--- Klaus Darilion darilion@ict.tuwien.ac.at
wrote:
...
...
There can be a lot of issues, e.g. I often find
long
...
...
call setup delays
caused by several DNS lookups (either by the
client
...
...
or the proxy) which
may take some time if the DNS server is slow.
You would have to use ethereal (or other packets
sniffer) and watch all
traffic related to your call to resolve this
issue.
...
...
Klaus
...
-----Original Message-----
From: jerk face
[mailto:jerkface2098@yahoo.com]
...
...
...
Sent: Monday, December 22, 2003 6:05 PM
To: serusers@lists.iptel.org
Subject: [Serusers] Call connections take too
long
...
...
...
I have noticed that when I attempt to call
another
...
...
...
user it takes a long time to make the
connection.
...
...
...
I'm guessing this is a configuration issue
since I
...
...
...
have an ADSL connection.  Does anybody know
how I
...
...
can
...
solve this problem?
Thank you for your time.

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