WM. David Halbrooks
Maryville,TN
Summary
Motivated Telephony Engineer, proficient in various aspects of the wireless Core Network. Dedicated to ensuring a seamless customer experience in all work performed in testing and migrations.
Experienced in all aspects of on-site installations and migrations in a customer network. Previous experience with a variety of Nortel/Ericsson products, including DMS 100 and Packet Core.
Overview
41
41
years of professional experience
Work History
Core Services Engineer
USCellular
Knoxville, TN
10.2011 - Current
- Performed upgrades and migrations of new peripherals and features.
- Performed lab testing and produced methods of procedures to be implemented in the production network.
- Subject matter expert on Nokia MME, Ericsson MME, DNS, and Calea systems.
- SME on LTE roaming with other carriers. Performed first in Industry S10 handovers between USCC and AT&T.
Network Engineering Services Engineer
USCellular
Knoxville, TN
10.2010 - 10.2011
- Maintained USCC CS2K Packet Data Lab.
- Worked with Ericsson in preparation for migration to CS2K in the production network.
- Worked on PP8600, SPM, CBM, and other parts of the CS2K Packet system.
Installer/Tester/STL
Ericsson
Plano, TX
09.2009 - 09.2010
- In 2009, Ericsson purchased the wireless division of Nortel Networks, and I was part of the acquisition.
- Installed, tested, and worked toward the migration of the Ericsson Packet Data Network.
- I also worked as the site team leader on many large and small projects for the Sprint account.
- I supervised contractors and interacted with the customer on a regular basis, keeping the jobs on budget and completing them as per the schedule.
Installer/Tester/STL
Northern Telecom/Nortel
Birmingham, AL
07.1984 - 09.2009
- Physically installed DMS 100, DMS 10, and remotes.
- Tested and integrated DMS 100 and remotes.
- Performed duties as the Site Team Leader.
- Interacted with customers and engineering.
- Around 2005, I moved to the Sprint wireless account with Nortel, and started working on Nortel's CS2K packet network.
- Tested and integrated, Packet Network.
Education
Associate of Science - Computer Engineering Technology
Tampa Technical Institue
Tampa, FLSkills
- Subject matter expert in Nokia and Ericsson Mobility Management Entity (MME) in the Evolved Packet Core (EPC)
- Experienced in DNS within the wireless IMS network
- Experienced in Communications Assistance for Law Enforcement Act (CALEA), specifically the Cognyte platform and its interconnectivity to the wireless network
- Experience testing and integrating Ericsson/Nortel Packet core CS2K, Passport 8600, CBM, MG9K, XA-Core, etc
- Experience performing the duties of a Site Team Leader, supervision of contractors on-site, tracking inventory, communication with customers and engineering, following installation practices, etc
- Making sure installation and migration activities do not disrupt or affect the customer experience
References
References available upon request.
Timeline
Core Services Engineer
USCellular
10.2011 - Current
Network Engineering Services Engineer
USCellular
10.2010 - 10.2011
Installer/Tester/STL
Ericsson
09.2009 - 09.2010
Installer/Tester/STL
Northern Telecom/Nortel
07.1984 - 09.2009
Associate of Science - Computer Engineering Technology
Tampa Technical Institue
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