[Serusers] Call connections take too long
Klaus Darilion
darilion at ict.tuwien.ac.at
Mon Dec 22 21:32:01 CET 2003
If the problem is between dialing and message 1, than this has nothing
to do with ser, because ser is between message 1 & 2.
Which user agent do you use?
What is "long pause"? 0.5 seconds, 5 seconds, 50 secondes?
Have you watched if there is some other traffic caused by your user
agent (capture the network traffic directly at UA1, not at the proxy)?
e.g. DNS lookups, NTP requests, ...
regards,
Klaus
> -----Original Message-----
> From: jerk face [mailto:jerkface2098 at yahoo.com]
> Sent: Monday, December 22, 2003 9:22 PM
> To: Klaus Darilion
> Subject: RE: [Serusers] Call connections take too long
>
>
> My delay is from the time that I dial the number to
> the time that "1. INVITE" happens.
>
> In ser.cfg I have the following in route()
> if (uri=~"sip:1[0-9][0-9]+ at .*") {
> rewritehostport("X.X.X.X:5060");
> #forward the request now
> if (!t_relay()) {
> sl_reply_error();
> };
> break;
> };
>
> I found that in the documentation for SER but I don't
> really understand what it means.
> I am used to the Asterisk syntax for phone numbers so
> I'm confused when I see "1[0-9][0-9]+ at .*"
>
> So anything that starts with 1 is sent to my gateway.
> But I don't understand "[0-9][0-9]". How many digits
> does this include?
> I'm only calling in North America, so I need 10 digits
> after the initial 1.
> Is it possible that I have it configured to look for
> more than 10 digits, so it waits until it times out
> and then sends the digits it has received?
>
> If that is the problem, how do I fix it?
>
> --- Klaus Darilion <darilion at ict.tuwien.ac.at> wrote:
> > 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 at yahoo.com]
> > > Sent: Monday, December 22, 2003 9:01 PM
> > > To: Klaus Darilion
> > > Cc: serusers at 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 at 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 at yahoo.com]
> > > > > Sent: Monday, December 22, 2003 6:23 PM
> > > > > To: Klaus Darilion
> > > > > Cc: serusers at 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 at 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 at yahoo.com]
> > > > > > > Sent: Monday, December 22, 2003 6:05 PM
> > > > > > > To: serusers at 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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>
>
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