The Branch Visiting User survivability feature is a resiliency feature that automatically assigns a Branch Session Manager to a user at a visiting location and provides local survivability during a WAN outage. With this feature, you do not need to manually administer a Branch Session Manager or change the existing Branch Session Manager with the local Branch Session Manager for the visiting user.
The calling and device features available to a visiting user depend on the user’s administered Communication Manager with respect to the Survivable Remote Server (SRS) of the visiting branch and the state of the branch network when the user arrives.