When you pair a Polycom VVX telephone with a Better Together over Ethernet (BToE) application, a Lync 2013 (Skype for Business) credential prompt is generated. However, it comes up behind all other active windows. Therefore, you are not aware that you need to input the credential.
Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.