Telephony System Administrator (Duluth) at AT&T Careers - AT&T Careers
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Keep the wheels of government turning 24/7. In a Government Support role, you’ll join a trusted team of experts who connect over 1,200 different agencies to serious security and mobility. Your work will help make the networks that our country runs on more protected, agile and effective. And with a wide range of opportunities (from Engineers to IT and Cyber Security), your continued growth can always be a top priority.

Telephony System Administrator (Duluth)

Columbia, Maryland



  1. Provide overall system administration for an enterprise wide
    Cisco Unified Communications Manager and related systems.
  2. Plan regular maintenance tasks including updates and upgrades.
  3. Maintain current and accurate documentation of system
  4. Design, administer, and analyze corporate dial plans and traffic
    routes for voice network structure.
  5. Administer and monitor voice systems for performance and SLA
  6. Provide support as needed to lower tier break/fix resolution and
    move/add/change/deactivation requests for all telecommunications systems.

Skills, Experience, and Education
: Ten (10) years of experience as an SA
in programs and contracts of similar scope, type, and complexity are
required.  Bachelor’s degree in Math,
Science, Engineering, Statistics, Engineering Management or a related
discipline from an accredited college or university is required.  Five (5) years of additional SA experience
may be substituted for a Bachelor’s degree. Please refer to the customer
document for additional requirements. Experience with the configuration and
administration of common TDM and VOIP telephone call manager systems, such as
the Nortel Meridian line of PBXs and Cisco Unified Call Manager. Large-scale
implementation experience with Cisco Voice in a multi-cluster environment and
data networking infrastructure. Working knowledge of H.323 and SIP. Familiar
with Cisco UCS platforms, voice gateways, virtualization, and ESXi.

DoD 8570 IAM Level 2 is required.

Required Clearance: Candidate must have a TSSCI with Polygraph

Job ID 1902360 Date posted 03/12/2019

AT&T a good place to be


I believe in AT&T and know they are at the edge of technology. The company believes in their people and offers all kinds of training to enable us to take on new jobs and to stay at the front of technology. The software defined network which we are building is the newest technology and AT&T has been involved since early 2000s. You have a great deal of autonomy at AT&T as long as you get the job done. You have the ability to do different jobs and to be challenged at all times.


I really have little negative to say about AT&T I have worked here for 35 years on March 23rd of 2016.

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