Scenario 2 – 15,000 SIP Extensions

The figure below shows a typical MiVoice MX-ONE with four sites, three data centers, containing Service Nodes, stand-alone database in the two main sites, the third site has a Service Node with co-located database node and the fourth no Service Nodes, only SIP phones.

Provisioning Manager runs on stand-alone servers.

Figure 1. MX-ONE deployed in three data centers

Note: In this figure, the MiVoice MX-ONE supports SCTP over IPSec, which requires separate configuration.

For example, if in this scenario the MX-ONE system has 15,000 users distributed in the 5 Service Nodes, SN1, SN2, SN3 and SN4 has 3,500 SIP users and SN5 has 1,000 SIP users. The database requirement for 15,000 users is 16 GB of RAM memory and 6 CPUs/vCPUs, so in this case all database nodes need to have 16 GB of RAM and 6 CPUs/vCPUs including the Service Node 5 which has a co-located system database node.