Hi all,

I'm using kamailio like dispatcher, for INVITE requests. The client is the IMS bench as UAC, and the backend node are sip servlet container, in which is running an UAS servlet. Between the client and kamailio there is the OpenIMSCore. I was using the hash over callid like algorithm, and all was going well. Now I'm trying to use the last algorithm, based on the call load of the destination backend, and the ACK message of the same dialog is sent to another instance. I read on the documentation that there is no SIP dialog tracking depending on other modules. This is my configuration:

# main request routing block route { if ( !mf_process_maxfwd_header("10") ) { sl_send_reply("483","To Many Hops"); exit; } # select from first dst group by round-robin if(!ds_select_dst("1", "10")) { sl_send_reply("500", "No destination available"); exit; }

t_on_failure("RTF_DISPATCH"); if(!t_relay()) { sl_reply_error(); exit; } }

# dispatcher failure routing block failure_route[RTF_DISPATCH] { if (t_is_canceled()) { exit; } # select next destination only for local timeout if (t_branch_timeout() & !t_branch_replied()) { if(ds_next_dst()) { t_on_failure("RTF_DISPATCH"); t_relay(); exit; } } }

Thanks and best regards, Giuseppe