I am having some difficulties/doubts on what would be the best approach to let multiple Kamailio servers share their SIP sessions between each other.

The goal is to have HA on Kamailio cluster such that if a call is received and initiated on Kamailio #1, and during any moment of the call (before or while established) if the server #1 goes down or Kamailio stops working for any reason, the call can be processed by Kamailio server #n available in the cluster.

I do not want to mess with Virtual IPs or DNS, that is not the point, but instead need to get a proper way to share SIP sessions between Kamailio servers such that any server could continue the call without issue.

I have checked the Dialog and DMQ module, but I am not sure if that is the way to go....

Could any one share a solution for this?

Greatly appreciated.

Cheers,