[SR-Users] Misrouting ACK packet for 200 Ok messages.

[ycaner]

Hello;
Thanks for advices. Kamailio2 and Asterisk use UDP.
Well, i fixed issue that Client Firewall has SIP alg and changes the
ContactUri port and disabled SIP ALG. 

First,i try to add Record Route to ACK on kamailio2 But it didnt work and
Transaction couldnt complete for BYE
Second, tried to fix Contact or removed on Kamailio2 , it didnt work.

Third , tried to fix R-URI port changes to 5060 that asterisk's listen port.
it worked.

After comparing Elastix packets and Kamailio-1 packets , i realized that
Firewall changes SIP packets with SIP ALG.

in conclusion , i need to work NATDETECT route on Kamailio 1 and Kamailio 2
that i can fix this issue on Kamailio.

Thanks.

Call Flow

Contact Header
Elastix:192.168.0.0:5060--->FW-->Elastix:PublicIP:10432-->Kamailio1-->Kamailio2+Asterisk.






 



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