When in System Manager (SMGR), which statement about enabling IM and Presence for an Avaya...

To enable IM and Presence for an Avaya Aura® user, you need to edit the Communication Profile of the user in System Manager, under Users > User Management > Manage Users. In the Communication Profile tab, you need to assign an Avaya Presence/IM handle to the user, which is a unique identifier that follows the format username@domain.com. You also need to enable and configure the Presence profile for the user, which specifies the Presence Services snap-in that will provide presence and instant messaging features for the user.