In GroupWise, you can use Busy Search to check other users’ Calendars for available times. If you receive an .ifb file from a non-GroupWise user, you can associate that free/busy information with the user’s contact information. Then, Busy Search can identify available times for that user.
In your Mailbox, open the email containing the free/busy location.
Block and copy the free/busy location.
Display the contact information for the sender, as described in Modifying a Contact.
or
Add the user as a GroupWise contact, as described in Adding a Contact.
In the contact information, click the Details tab.
Paste the location into the Free/Busy field.
Click Save, and then click Close.