IP Office can use Avaya one-X Portal as its server for instant messaging.
Procedure
Log in to IP Office using IP Office Web Manager to edit the configuration settings. Using IP Office Web Manager provides access to additional controls to ease configuration.
Select System Settings > System.
If configuring servers in a multi-site network, click on the icon next to the required server.
Select System.
Change the Messaging Server setting to one-X Portal.
Use the system's Avaya one-X Portal server for instant messaging between IP Office clients, including Avaya Workplace Client.
User's must register directly to the IP Office system.