[asterisk-bugs] [Asterisk 0017491]: calls show some seconds on my cdrs - calls show minutes on my carrier's cdrs!!

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17491 
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Reported By:                argeorge
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17491
Category:                   Core/RTP
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.31 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-06-09 00:57 CDT
Last Modified:              2010-06-09 04:48 CDT
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Summary:                    calls show some seconds on my cdrs - calls show
minutes on my carrier's cdrs!!
Description: 
I have huge problem,i use asterisk with a2billing
but is not problem with billing since asteriskcdrdb also has same thing on
cdrs.

I had somebody subscribing on my website and sending calls to different
countries special services. from cdrs i see short calls on my system 1-5
seconds.
the provider online cdrs report 10 minutes,20 minutes or more.
My provider says that this happened again to some of their customers they
say "your customer found a way to trick asterisk"
they say once the call is sent they cancel and after they send another
call with same call-id and. on sip debug from his site he sees that after
10 minutes my server sends OK for re-invite...
Im loosing money and i dont know if is a bug,my provider or anything else
i need your help,and if possible a security fix
directrtsetup=yes
canreinvite=yes
those are globally enabled
thanks
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---------------------------------------------------------------------- 
 (0123163) argeorge (reporter) - 2010-06-09 04:48
 https://issues.asterisk.org/view.php?id=17491#c123163 
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sip conf variables:


vmexten=*97
context=from-sip-external
callerid=Unknown
notifyringing=yes
notifyhold=yes
limitonpeers=yes
tos_sip=cs3
tos_audio=ef
tos_video=af41
alwaysauthreject=yes
disallow=all
allow=ulaw
allow=alaw
allow=g729
allow=g723
directrtpsetup=yes
trustrpid=yes
sendrpid=yes
jbenable=no
minexpiry=60
allowguest=yes
defaultexpiry=120
srvlookup=yes
maxexpiry=3600
registerattempts=0
registertimeout=20
notifyhold=yes
rtptimeout=30
g726nonstandard=no
t38pt_udptl=no
videosupport=no
maxcallbitrate=384
canreinvite=yes
rtpholdtimeout=300
rtpkeepalive=0
checkmwi=10
notifyringing=yes
nat=no
externip=x.x.x.x
localnet=x.x.x.x/x.x.x.x 

Issue History 
Date Modified    Username       Field                    Change               
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2010-06-09 04:48 argeorge       Note Added: 0123163                          
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