RHEL7 Failover Cluster
In this tutorial we will see how to create a cluster between two Red Hat Enterprise Linux (RHEL) 7 virtual machines. I installed them on ESXi platform, with 2 vPCU and 2 GB of RAM each, but this is a detail. Three IP addresses are required, one for each RHEL server and one as a virtual IP for the cluster. Virtual machines need to communicate with each other.
IVR capacity calculation, how to estimate the number of ports
Estimating the number of incoming calls to an IVR or Contact Center system, as well as estimating the distribution of calls over time, is of fundamental importance for correctly sizing the system in terms of resources to be used. In particular, for a realistic sizing, it is necessary to estimate the maximum number of simultaneous calls arriving to the system.