[SR-Users] Local call routing accross many kamailio servers

Hi I do have 3 kamailio servers sharing the same db, calls go to Asterisk and that works great, I did purchase a DID and point it to one of the kamailio servers, it works fine so far for that kamailio server as the call is forwarded to the softphone ..but ONLY if the user is registered on the kamailio server the DID is forwarded to..if the kamailio user is on another kamailio server it does not work..although the database and location tables are shared. Simple diagram DID Provider <=== DID Kamailio ===> Kamailio Servers A, B, C If a softphone registers on DID Kamailio and I call the DID it works, if a softphone registers on Kamailio A or B or C, I never get the call, looking at ngrep the call just stays on DID Kamailio and it does not try to send it to any other server, how can I make the Kamailio DID lookup the destination from the location table and send the call there ? Regards