- Reception and analysis of Planned Work and Change requested by Customer and 3rd Parties - Change ticket creation- Network Change documentation and scheduling- Request review and validation- Interaction with Change Advisory Board and Emergency Change Advisory Board - Request approval/rejection- Change preparation - Change results analysis - Customer acceptance for Change requested by the Customer- Change ticket closure

- using an ITIL-based IT infrastructure management- Change Management for a Telefonica Germany Project - using a ticketing based System (BMC Remedy)- ensuring that a change request is properly documented- authority to approve or the reject a change to be implemented- coordinating meetings with Change Advisory Board (CAB), where major changes are discussed and are proposed for approval from the head of operations- creating change requests for external partners- requesting a review from the technical team to ensure that the change will not cause a significant outage on the network- closing changes after they have been implemented- analyzing the impact of a change- providing necessary information to the implementer of the change- updating the change log with all the needed information