[Asterisk-Users] Provisional problem with SIP channel

[Benoît Mérouze]

Hi,

I'm using the Perl AGI interface for a prepaid card platform. And 
sometimes (almost twice an hour), asterisk doesn't detect a call has 
been hung up. The call is so hung up when the time limit for the call is 
reached (the corresponding prepaid card is then emptied ...).

I've tried to look in the asterisk log files to find anything suspect 
with these calls, and I've found a debug message which looks to be my 
problem :
chan_sip.c: (Provisional) Stopping retransmission (but retaining packet)
Each time I've got that, the call is not normally hung up.

Hopefully that's not a bug in asterisk !

Is there anyone who could help me ?

It's hard to extract logs as it's hard to identify these few calls 
(that's not a constant problem). Here are some logs I've extracted :
Jun 20 15:59:07 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
565bd370360864a1064e763c1e38112e at 193.111.80.221 Their Tag Our tag: 
as03ec066e
Jun 20 15:59:07 DEBUG[25077] chan_sip.c: (Provisional) Stopping 
retransmission (but retaining packet) on 
'565bd370360864a1064e763c1e38112e at 193.111.80.221' Request 102: Found
Jun 20 15:59:07 DEBUG[25077] chan_sip.c: SIP response 100 to standard invite
...
Jun 20 15:59:11 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
2411b3957fdca465667d37b027679a63 at 193.111.80.221 Their Tag Our tag: 
as3eafcd68
Jun 20 15:59:11 DEBUG[25077] chan_sip.c: (Provisional) Stopping 
retransmission (but retaining packet) on 
'2411b3957fdca465667d37b027679a63 at 193.111.80.221' Request 102: Found
Jun 20 15:59:11 DEBUG[25077] chan_sip.c: SIP response 100 to standard invite
Jun 20 15:59:17 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
2411b3957fdca465667d37b027679a63 at 193.111.80.221 Their Tag Our tag: 
as3eafcd68
Jun 20 15:59:17 DEBUG[25077] chan_sip.c: (Provisional) Stopping 
retransmission (but retaining packet) on 
'2411b3957fdca465667d37b027679a63 at 193.111.80.221' Request 102: Found
Jun 20 15:59:17 DEBUG[25077] chan_sip.c: SIP response 183 to standard invite
...
Jun 20 15:59:19 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
2411b3957fdca465667d37b027679a63 at 193.111.80.221 Their Tag 169705f8 Our 
tag: as3eafcd68
Jun 20 15:59:19 DEBUG[25077] chan_sip.c: Acked pending invite 102
Jun 20 15:59:19 DEBUG[25077] chan_sip.c: Stopping retransmission on 
'2411b3957fdca465667d37b027679a63 at 193.111.80.221' of Request 102: Match 
Found
Jun 20 15:59:19 DEBUG[25077] chan_sip.c: SIP response 200 to standard invite
Jun 20 15:59:19 DEBUG[25077] chan_sip.c: build_route: Contact hop: 
sip:00244923636493 at 84.207.21.80;transport=UDP
...
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: = No match Their Call ID: 
2411b3957fdca465667d37b027679a63 at 193.111.80.221 Their Tag 169705f8 Our 
tag: as3eafcd68
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
565bd370360864a1064e763c1e38112e at 193.111.80.221 Their Tag Our tag: 
as03ec066e
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: Stopping retransmission on 
'565bd370360864a1064e763c1e38112e at 193.111.80.221' of Request 102: Match 
Found
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: = No match Their Call ID: 
2411b3957fdca465667d37b027679a63 at 193.111.80.221 Their Tag 169705f8 Our 
tag: as3eafcd68
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: = Found Their Call ID: 
565bd370360864a1064e763c1e38112e at 193.111.80.221 Their Tag Our tag: 
as03ec066e
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: Stopping retransmission on 
'565bd370360864a1064e763c1e38112e at 193.111.80.221' of Request 102: Match 
Not Found
Jun 20 15:59:22 DEBUG[25077] chan_sip.c: Updating call counter for 
outgoing call

Thanks,
Benoit


-- 
Benoit Merouze
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._.
 Groupe IPercom - The VoIP Enabling Company -  http://www.ipercom.com
         Ingénieur R&D - courriel : benoit.merouze at ipercom.com
     Network Software Developer - mailto: benoit.merouze at ipercom.com
                     Tél. / Phone : +33 1 7269 9611
._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
Siège Social 43, rue Fessart 92100 Boulogne Billancourt
RCS NANTERRE B 440 345 528 - Capital social: 100 000 €
CE COURRIEL COMME LES DOCUMENTS EVENTUELLEMENT ASSOCIES
SONT CONFIDENTIELS & COUVERTS PAR LE SECRET PROFESSIONNEL

THIS E MAIL AND ANY DOCUMENT POSSIBLY ATTACHED ARE
CONFIDENTIAL AND COVERED BY THE PROFESSIONAL SECRECY
._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
"Only two things are infinite, the universe and human stupidity, and I'm
  not sure about the former."
Albert Einstein