Dear customers, from 09. to 20. August 2021 the hotline will be unmanned due to vacation. Unfortunately, we will not be able to answer technical inquiries during this time. However, the website with the product database, the WIKI and the latest version of the Massoth Service Tool (MST) will of course be available. As of August 24, the hotline will again be available by telephone every Tuesday from 13:00 to 15:00 and every Thursday from 9:00 to 11:00.