________________________________________ From: [email protected] [[email protected]] On Behalf Of Tony Graziano [[email protected]]
I don't think centralized voicemail has been addressed yet. In theory in a HA environment it could cause a lot more WAN traffic so its probably not real high on other peoples lists. There would be significant work to be done to centralize it. _______________________________________________ VM is a particularly difficult situation. It is an "operational" component (as opposed to a "configuragion" component), so it has to operate in more or less real time. It contains a great deal of user-visible state. (As opposed to the proxy and registrar, which operate nearly statelessly.) So building a replicated-redundant VM system is really difficult. Even what interface it should present to the users is non-trivial. (E.g., the network is partitioned, and a caller in part 1 deletes a particular voicemail in VM server 1, while a caller in part 2 forwards that same message to another user in VM server 2. When the two servers reconnect, what should the reconciled state of the message be?) It appears that the best architecture would be have distributed-replicated-redundant database servers to hold all the state, and build a VM interface on top of those that would contain only the states of current VM calls. But I've not heard of an open-source database system that han dles replication-redundancy well. Dale _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
