To make sure that the reporting and logging activities across all servers in your network are synchronized to the same time, use the same external time source for the following:
The server running the Primary EPM software
Any application servers running on dedicated machines
All available speech servers
All PBX switches
All email servers
You can use a corporate or a public time server as the external time source.
Note:
Avaya only provides guidelines for public time servers. Ensure that the servers you choose are accessible through your corporate firewall. Some public time servers either limit the amount of access a particular site has or charge for their services. If you select a public time server, make sure that the time server meets all requirements before you change the chrony.conf file on the Primary EPM server.