Greg Fausak wrote:

Hello,

I believe this is a well known bug. Granularity of timers is 1 second. So, if you sign up for a timer to be fired in 1 second it will happen anywhere between 0 seconds and 1 second. 2 seconds will happen between 1 and 2 seconds. I usually set up my timers to be 2, 2, 4, 8. There are VOIP providers that are pretty sticky about the first 500ms. If you are using one of them you're out of luck.

Yes, there is a timer process that wakes up every second to perform retransmissions. I was actually quite surprised that OpenSER, which is known to be very standards compliant, does not follow the RFC 3261 retransmission timeouts. On the other hand, the RFC 3261 timeout values are just suggestions and standards compliant SIP UA must accept shorter timeouts. Still it would be nice if OpenSER would support sub second timers, this would allow for shorter fail-over times.

Christian

I believe SER has made timer changes to support more exact timer intervals. They are a completely different camp, with a different feature set (although they share the same roots).

-g

On 11/7/06, Jean-François SMIGIELSKI jf-smig@ibelgique.com wrote:

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Hello,

I made strange observations about the intervals between retransmissions with the TM module. In my experiments, I used the default parameters for the TM module timers, and I sent an INVITE that cannot receive answers (it has a well known R-URI pattern that is forwarded to a place and port that nobody listen).

When reading RFC3261, I expected to see intervals between retransmissions of |500ms|1s|2s|4s|8s|16s|. 7 transmissions, during 32s.

But with OpenSER, (I have tested with the debian package 1.1.0-5 on a debian etch, and the cvs sources for 1.1.0 or 1.0.1compiled by myself), I can see intervals like <500ms, 2s, 4s, 4s,4s, ... until 26s are spent (9 sendings). The first interval is sometomes very short (40ms).

Altough I like the sequence of 4s separated transmissions, I do not know why the first interval is so short, and why there is no sending after 1s.

Did anybody observed such behaviours? Are they normal?

Thanks in advance!

JF Smigielski.

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iBELGIQUE, exprimez-vous ! http://web.ibelgique.com/

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Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users

Hi Greg

Try the following commands: openserctl fifo get_statistics location-users openserctl fifo get_statistics usrloc:

Hope this helps, Ovidiu Sas

On 11/7/06, Greg Fausak lgfausak@gmail.com wrote:

Is there a statistics variable that gives me the current number of registered users? (There is one for current number of dialogs).

---greg

Greg Fausak greg@thursday.com

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Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users

Thanks.

It turns out I was already picking it up, but I filtered it out of my result set with the pattern:

if($line =~ /^(\w+)\s*:\s*([\w_]+)\s*=\s*([\w\d]+)\s*$/) ---had to change it to if($line =~ /^(\w+)\s*:\s*([\w_-]+)\s*=\s*([\w\d]+)\s*$/)

I wasn't expecting a statistic with a - in it.

Thanks, -g

On 11/8/06, Ovidiu Sas sip.nslu@gmail.com wrote:

Hi Greg

Try the following commands: openserctl fifo get_statistics location-users openserctl fifo get_statistics usrloc:

Hope this helps, Ovidiu Sas

On 11/7/06, Greg Fausak lgfausak@gmail.com wrote:

...

Is there a statistics variable that gives me the current number of registered users? (There is one for current number of dialogs).

---greg

Greg Fausak greg@thursday.com

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Users mailing list Users@openser.org http://openser.org/cgi-bin/mailman/listinfo/users