hello,

I’m trying to build two kamailio-3.3.4 server  like this:

ua1 ----> kamailio1(k1)-----> kamailio2(k2) -----> ua2

ua1 (5978003 )  is register k1   

ua2 (5001005)   is register k2 

When ua1 callout to ua2 sip process through k1 and k2

The problem is k2 server ACK not transfer to ua2  and  k2 has received ack signals from u1 through k1

I ngrep sip process for k2 and k2 /var/log/debug 

see the attached File ngrep_k2server.txt, debug_k2 

1.

First ACK uri have ua2 number sip:5001005@xxx.xxx.xxx.xxx(k2):5003;ob  ,   is correct !!

2. Second ack not include 5001005  , again loop itself     ; Route: <sip:xxx.xxx.xxx.xxx(k2):5003;lr;did=763.941>

loose_route  Next hop: 'sip:xxx.xxx.xxx.xxx(k2):5003;lr;did=763.941' is loose router.

so  next  hop  Not found in usrloc db  5001005 user and not  transfer to ua2 

How to fix this problem, any suggestions ? 

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