- Knowledge Base
- Communication and Collaboration
- Voice and Data Services
Users may experience Avaya login issues despite correct settings, receiving the error: The telephone you are trying to share control of is currently out of service or associated with another login session. This article provides troubleshooting steps to resolve the issue.
- Knowledge Base
- Communication and Collaboration
- Voice and Data Services
This article provides a quick reference guide to the 2420 digital telephone.