A telecommunications engineer configures or designs voice, data, and video communications systems. Your responsibilities in this career include working to install or maintain telephones, networks, telecom equipment, telephony elements, voicemail systems, or conferencing systems. Other duties include evaluating and reviewing requests from managers, technicians, and engineers for system modifications, estimating the costs for components or system operation and implementation. You are also in charge of supervising telecommunications equipment maintenance, preparing performance and system activity reports, evaluating and testing software and hardware to determine reliability, compatibility, and efficiency with existing systems, and maintaining, implementing, and developing telecommunications disaster recovery plans so that there are no interruptions to the business.