3You can sign into or sign out of your Skype for Business account on the phone.To sign into your Skype for Business account:1. Tap Sign in,and then select a desired sign-in method.2. Follow the onscreen prompts.To sign out of your Skype for Business account:1. Tap your avatar at the top-right corner of the touch screen.2. Tap Sign Out.If the Skype for Business server is configured to forcibly lock the phone, user can use phone lock featureto lock the phone to prevent it from unauthorized use.The Skype for Business phone will prompt the user to create a lock PIN at the initial sign-in.To set a lock PIN:1. Enter the lock PIN in the New PIN field.2. Enter the lock PIN again in the Confirm PIN field.3. Tap Save or press to accept the change.After you create a lock PIN, you can use it to unlock your phone.To unlock the phone:1. Enter the lock PIN when the phone is locked.2. Tap Unlock to unlock the phone.Your presence information is a quick way for other people to see your availability status. You can change itmanually if you want to.To update your presence status:1. Tap your avatar at the top-right corner of the touch screen.2. Tap the desired status.You can tap Reset Status to change your status to Available.The phone directory includes local directory and Skype for Business directory.To add a local contact:1. Tap Contacts->Local Directory.2. Tap the desired group, and then tap to add a contact.3. Enter a unique contact name in the Name field and other information in the corresponding fields.4. Tap or press to accept the change.To search for contacts:1. Pick up the handset, press Speakerphone key or tap .2. Enter a few continuous characters of the contact name or continuous numbers of the contact number tosearch for the contact.The phone automatically displays search results.Phone LockUpdate Your Presence StatusDirectorySign into or Sign Out of Your Skype for Business Account