[OpenSIPS-Users] PDD

[Brett Nemeroff]

Ok, so at first I was thinking.. what I need to do is set the fr_inv_timer
to something like 10 seconds. But then in the on_reply route, check for a
18X reset the fr_inv_timer to like 200 seconds to allow the call to ring.
I'm pretty confused now.. I thought the fr_timer was the timer to get a
provisional reply. so as soon as you get a 100 the timer isn't used anymore.
This option suggests that if you set restart_fr_on_each_reply to 1, then
after you get a 100 Trying, then it will allow for fr_timer seconds again
before timing out. Is that right? This of course, leads me to my next
question, the documentation says that by default it does this, but I'm
certainly not seeing this behavior.

let me make sure I have this clear please:
fr_timer = time from trigger (request) to ANY reply. The trigger point
depends on the restart_fr_on_each_reply setting. If off, it's just from the
request. If on, each provisional reply will cause the timer to be reinvoked,
else it would have been ignored. In other words if fr_timer = 5 seconds and
I get a 100 Trying after 500ms, and then the 183 Ringing occurs 8 seconds
later, the only way the timer would be tripped is if I set
reset_fr_on_each_reply=1?

fr_inv_timer = the max amount of time between an initial request and a
positive final reply (2XX)

How mixed up am I? And is restart_fr_timer_on_each_reply really default to
1? and if so, why does it not work how I expect? (ie: now, as long as I get
the 100 Trying in 5 secs (fr_timer) the 18X could come 20 seconds later and
everything is happy (but me).

Thanks!
-Brett




On Thu, Jun 11, 2009 at 3:14 AM, Bogdan-Andrei Iancu <bogdan at voice-system.ro
> wrote:

> Hi Brett,
>
> The relevant timer are:
>   - A - timeout at transport level, if no reply comes back
>   - B - timeout at transaction level, if the transaction did not completed
> (no final response received)
>
> What may help you is the fact that the B timer may be reset after each
> provisional reply. see:
>      http://www.opensips.org/html/docs/modules/1.5.x/tm.html#id271074
>
> Regards,
> Bogdan
>
> Brett Nemeroff wrote:
>
>> All,
>> Is there a tm timer for pdd?
>> What I want is to timeout between a 100 and a 18X reply.. so if I get a
>> 100 and say more than 6000ms elapses without another provisional reply,
>> proceed to failure route.
>>
>> I don't see a way to do this now without fr_inv_timer which effectively is
>> the "ring timer" as far as I understand. which isn't quite right (timer from
>> 1XX to >=200?)
>>
>> Thanks,
>> Brett
>>
>>
>> ------------------------------------------------------------------------
>>
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>
>
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