[OpenSIPS-Users] Problem with hanging dialogs

[Marcin K.]

Hi,

I'm having problem with hanging dialogs.
 
Nov 23 20:46:18 V0P034-VoIP-LB /usr/local/sbin/opensips[16945]: New request
- M=INVITE RURI=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl
F=sip:519xxxxxx at 10.0.130.161 T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl
IP=10.0.130.161 ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:18 V0P034-VoIP-LB /usr/local/sbin/opensips[16946]: Reply -
S=100 R=<null> D=Trying F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:22 V0P034-VoIP-LB /usr/local/sbin/opensips[16946]: Reply -
S=183 R=<null> D=Session Progress F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:22 V0P034-VoIP-LB /usr/local/sbin/opensips[16943]: Reply -
S=180 R=<null> D=Ringing F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16946]: Reply -
S=200 R=<null> D=OK F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16944]: New request
- M=ACK RURI=sip:517xxxxxx at 10.18.2.1:5060 F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.0.130.161
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16945]: New request
- M=INVITE RURI=sip:517xxxxxx at 10.18.2.1:5060 F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.0.130.161
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16945]: Reply -
S=200 R=<null> D=OK F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16944]: New request
- M=ACK RURI=sip:517xxxxxx at 10.18.2.1:5060 F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.0.130.161
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16946]: New request
- M=INVITE RURI=sip:517xxxxxx at 10.18.2.1:5060 F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.0.130.161
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:46:42 V0P034-VoIP-LB /usr/local/sbin/opensips[16945]: Reply -
S=100 R=<null> D=Trying F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.18.2.1
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:48:43 V0P034-VoIP-LB /usr/local/sbin/opensips[16948]:
failure_route(1) - S=100 R=sip:517xxxxxx at 10.18.2.1:5060 D=Trying
F=sip:519xxxxxx at 10.0.130.161 T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl
IP=10.0.130.161 ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060
Nov 23 20:48:43 V0P034-VoIP-LB /usr/local/sbin/opensips[16943]: New request
- M=ACK RURI=sip:517xxxxxx at 10.18.2.1:5060 F=sip:519xxxxxx at 10.0.130.161
T=sip:ora517xxxxxx at lb-gw.sip.int.ccig.pl IP=10.0.130.161
ID=704b35af1ca1a25171204e963b815e1d at 10.0.130.161:5060


My config file is following:  http://pastebin.com/JYqp7mmZ 

Call flow is following Asterisk -> Opensips -> Patton SmartNode gateway.
Once every minute or two, I have ~200 active calls to ora destination.

I have totally no idea where problem lies. 

Can anybody guide me?

Regards,
Marcin