[Freeswitch-users] Call recovery - Multi-primary / multi-backup scenario

Hi all, I would like to know if the track-calls feature could be used in a multi-primary - multi-backup scenario. What I think is an environment with Kamailio dispatcher to N freeswitch boxes with a (multi or) single freeswitch backup. In case of failure, one primary should be replaced with a backup (spare) box that will take its IP and active calls. If all active freeswitch track call state in the same table/database, how the backup box will know what calls should be recovered? Anyone could explain the call recovery algorithm? Best Regards,