Hi Douglas,
You will need to upgrade to 1.2.2. This issue was fixed starting with 1.2.0.
Regards, Ovidiu Sas
On Dec 3, 2007 3:12 PM, Douglas Garstang dougmig33@yahoo.com wrote:
Ok, I can accept that it might be a timeout since it doesn't happen every single time. 1/5s seems awefully short though. How can I increase this? I can't find anything in the docs about increasing this timeout...
Doug.
----- Original Message ---- From: Ovidiu Sas osas@voipembedded.com To: Tavis P. tavis.lists@galaxytelecom.net Cc: users@openser.org Sent: Monday, December 3, 2007 12:01:53 PM Subject: Re: [OpenSER-Users] OpenSER Sending INVITE Twice!?
Right, 1/5 is not 1/2 :)
-ovi
On Dec 3, 2007 10:10 AM, Tavis P. tavis.lists@galaxytelecom.net wrote:
It may also be related to the timer accuracy of OpenSER 1.1
If the T1 interval is 500ms but OpenSER 1.1 doesn't support sub-second timer accuracy it is probable to see it retransmitting in situations where T1 hasn't been reached yet It shouldn't cause any problems though, just a few erroneous retransmits from time to time
tavis
Ovidiu Sas wrote: Hi Douglas,
You posted this questionawhileago and by checkingthe archives Irealised that my answer was truncated somehow ... Here's the full answer:
This is the way that is supposed to work. If nothing is received from upstream, the request is resent.
From the rfc3261:
17.1.1.1 Overview of INVITE Transaction
The INVITE transaction consists of a three-way handshake. The client transaction sends an INVITE, the server transaction sends responses, and the client transaction sends an ACK. For unreliable transports (such as UDP), the client transaction retransmits requests at an interval that starts at T1 seconds and doubles after every retransmission. T1 is an estimate of the round-trip time (RTT), and it defaults to 500 ms.
It seems that your upstream UAS is slowin sending out the 100 Trying and therefor openSER is resending out the INVITE.
Regards, Ovidiu Sas
On Dec 3, 2007 12:35 PM, Douglas Garstang dougmig33@yahoo.com wrote:
I have an OpenSER 1.1 install here, and for some reason, OpenSER is
sending
the INVITE message twice to the upstream host.
Asterisk OpenSER Provider
| ---INVITE---> | | | | ---INVITE---> | | | ---INVITE---> | | | <---TRYING--- | | | <---TRYING--- |
The time difference between them is about 1/5 of a second. Nothing is received between the first and second INVITE's.
Why is OpenSER doing this?
I have xlog() statements everywhere in openser.cfg, and OpenSER is only logging ONE outgoing INVITE message, eventhough it's sending two. It is logging the multiple TRYING messages that come back however.
OpenSER is not calling failure_route because nothing is logged in there. What could be going wrong? Why is it doing this?
Doug.
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-
Ovidiu Sas