In its most basic form, the Telco industry has long been seen as traditional, walled garden, yet this paradigm has begun to change since work started on NFV, and it is changing fast. The new Telco-Cloud has begun to adapt to this strange new world – enabling speedy deployment, cost effective networks, unheard of agility and most alarmingly of all – openness. Bye-bye lock-in and walled gardens. Say hello to multi-vendor infrastructure. Bye-bye proprietary solutions, make way for the new king – Open Source. Nokia CloudBand has been integrating open source code into its NFV platform from day 1, little by little overcoming the various pitfalls of using open source in a corporate setting, and this commitment has deepened and flourished, enabling Nokia CloudBand to work upstream and initiate project Vitrage, focusing on the realm of Root Cause Analysis and Deduced Alarms. This work is enhanced further by the tight collaboration with OPNFV and in particular with the Doctor project, working with DOCOMO, NEC and other project members. Join Nokia CloudBand and OPNFV Doctor to learn how to achieve openness in the Telco Cloud sphere, and how the Vitrage & Doctor collaboration is accelerating open source fault management.