When the users configured on Server Edition Expansion System log into Avaya one-X® Portal for IP Office of Server Edition Primary and then start registering the SIP phones on Server Edition Expansion System, the users are disconnected from Avaya one-X® Portal for IP Office.
Possible reasons
This issue appears when there are not enough third party IP Endpoint licences when a SIP extension registers on Server Edition Expansion System, the system logs the user off Avaya one-X® Portal for IP Office. The system also sends a request to Server Edition Primary to obtain the necessary licences. If the system obtains the license, then the system logs in the users, else the users remain logged out.
Work around
Enable Reserve 3rd Party IP Endpoint licence check box on the SIP extensions that you plan to register. This ensures that the system obtains licences from Server Edition Primary and the licenses are present in the configuration when SIP extensions register. Alternatively, ensure that there are enough third party IP endpoints licenses on Server Edition Expansion System.