Michael Dejene Email & Phone Number

Virginia, United States

Skype for Business deployments and migrations, Unified Communications solutions.

Leesburg, Virginia

As a lead technical professional proactively reviewed VoIP network configurations and proposed changes and optimizations. Supported NOC in resolving complex VoIP issues on the multi-vendor and multi-technology environment. Led the upgrade of VoIP infrastructure components. Implemented network infrastructures that paved the way for business growth while optimizing network systems to enhance performance. Provided technical support to NOC in all aspects of the VoIP architecture from isolating problems to replacing faulty cards on all network elements.  Served as the principal technical contact for all third-party vendors. Coordinated with vendors in all upgrades of VoIP infrastructure and ensured production network is not affected by the changes. Responsible for configuration management of network elements thus defined standard parameters to be used in the network. Configured the core routing and translation features of the Softswitch. Defined call performance measurements and fault alarms to be monitored by NOC. Provided the NOC the tools and procedures they need to effectively monitor and maintain the VoIP architecture. Managed the installation, testing, and maintenance of various telecom network elements.

Herndon, Virginia

Ensure VoIP functionality in a production environment for residential and commercial markets. Review voice systems and provide support in resolving complex VoIP issues on a multi-carrier environment.Provide network operations support for all Time Warner Cable business class PRI over fiber and PRI over DOCSIS (IMS) Trunk customers.Resolve complex VOIP issues that involve multiple users and that cannot be resolved by region division support.Coordinate with vendors in all upgrades of VoIP infrastructure and ensure production network is not affected by the changes.Resolve problems associated with audio quality such as one way audio, dropped calls or no audio. Develop and present (as needed) clear, comprehensive Standard Operating Procedure (SOP) documents to the NOC for all VOIP planned changes.Resolve systemic QOS issues by working with telecom carriers and vendors.Provide technical support and assistance to the division engineering staff during network deployments.

Boyds, Md

Hired as a network engineer, rapidly progressed to positions of increasing technical responsibility, playing a key role as a lead technical professional in a gradual migration of the network from TDM to next generation of VoIP networks. Reviewed proactively VoIP network configurations and proposed changes and optimizations to reduce network and equipment outages.Managed the overall turn up of sip trunks from the initial technical correspondence to the actual testing and implementation of the route.Reviewed VoIP network configurations to ensure VoIP standard configuration are used in production.Administered the routing and translation database of the Cisco GWs and the Softswitch.Assessed and resolved problems found during testing with LECs and CLECs. Resolved systemic SIP and Q.931 call flow problems.Resolved problems on a multi-vendor, multi-technology environment.Coordinated the provisioning of new facilities to customer sites.Analyzed daily trouble ticket summary reports and implemented new processes to improve resolution time.

Bethesda, Md

Network Operation Center experience in a centralized troubleshooting and testing environment that included logging events in a ticketing system, and providing technical support and repair coordination. Provided surveillance of the Startec Global Communications network using all applicable NOC Network and Systems Management Tools.Performed initial troubleshooting, problem analysis and isolation of network and system events.Facilitated and coordinated the flow of communications between the Startec NOC and internal Startec groups, as well as external vendors and third-party ISP partners.Troubleshoot, evaluated, and tracked problems and recommended the best solutions.Quickly identified and analyzed network events from the network monitoring system.Provided administrative bridge management and oversight during network events/outages.Provided routing and voice quality network troubleshooting for customer-impacting or recurring issues.