O yes :) So, for having a load balanced call administrarion. Using linux virtual server proyect I have run across a few design issues. The idea is easy. 3 servers. The Main server, to recive the calls, and the other 2 to originate the call. The load balancing of generating the call can be made using ipvs, but for this I need that the registration made to one server, is replicated to the other server. Once you have phone registration, sip/iax/etc balanced, THEN you have HA * cluster... Any ideas, or this could be a module to develop?