[Users] Re: Double Invites

Klaus Darilion klaus.mailinglists at pernau.at
Mon Jul 10 08:43:16 CEST 2006


This was reported several times and AFAIK this is caused by inaccurate 
timer implementation.


Dimo wrote:
> Hi guys,
> I fixed it. Just put in my script:
> modparam("tm", "retr_timer1p1", 2)
> The thing is that the default is 1 sec but with it I get retransmits
> not after a second but after several microseconds - not enough time to
> get an ACK. I could not find anywhere on the list a known issue about
> that, so I guess I am reporting it. Could be some kind of race
> condition..
> I am available for tests.
> Dimo
> On 7/4/06, Dimo <begeragus at gmail.com> wrote:
>> Hello,
>> I have put my openser box between two sipp generator/server scripts
>> again and I noticed something that might be a problem.
>> Every 200-300 messages i get relayed double invites from the openser.
>> The two invites comming out of openser are only microseconds apart and
>> are for the same message - they have only one invite corresponding
>> from sipp generator.
>> I then noticed that this is happening with other messages too.
>> I am using t_relay and as far as I can see there is no way that two
>> consecutive t_relays are called, since i exit after each relay in my
>> script.
>> Any suggestions? Could this be a config problem. Maybe a bug in the
>> retransmit timers t_relay is using? How can i check if this is the
>> case?
>> Thanks,
>> Dimitar
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