asterisk users - Oct 2006 - Call drop and strange CDR records

Hi,

I have some (5-10 per day on an average 250 calls/day) incoming calls 
dropped after 25 to 60 seconds.
Asterisk is 1.2.10 + BriStuff 0.3.0-PRE1s on one hand (with 4 ISDN lines...)
Snom 320 SIP IP Phone (release 6.2.3) on the other.

With SIP Debug on, it *_looks_* like a normal call clearing, but the 
users are complaining, stating that no one on either end had hanged up.

Doing a "sip debug" on asterisk shows a normal call clear from the
snom
(Receiving a SIP BYE frame).

But, the CDR record looks strange (and this is the only common point 
between those calls): Both the session timer and the talk timer are the 
same, but according to the log, the call are all answered after 3 to 5 
seconds ringing (so those timers should show this difference).

Thanks,
Fabrice Cahen

-- 
Fabrice Cahen
Consultant - Bluesat SARL
20-22, rue de Nantes
75019 Paris
T: 01.40.18.75.75
F: 01.40.18.75.71
P: 06.80.70.97.60
M: fabrice DoOoT cahen AoT bluesat DoOoT fr

> But, the CDR record looks strange (and this is the only common point
> between those calls): Both the session timer and the talk timer are the
> same, but according to the log, the call are all answered after 3 to 5
> seconds ringing (so those timers should show this difference).
>
> Could you elaborate ?
Do you mean that :
1. For dropped calls and only for them, log files and CDR are not consistant
?

2. If my understanding is correct, from log files you've got

T:   Phone is ringing
T+3 or 5s:     Call is answered
T+X:       Call is hanged
>From CDR files :
Session duration = Talk duration = X

3. Do you have any example of log files ?

Cheers
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20061014/d0dc4bd7/attachment.htm