How can I arrange a callback? Ing. Oliver Baltz October 20, 2022 19:31 Updated Here we describe how we can help you the fastest. Related articles How can I reach you by phone? How do I get competent help? What is sync.blue® DONE FOR YOU? What information is needed to solve a technical problem? Which apps is sync.blue® compatible with? Comments 0 comments Please sign in to leave a comment.