Voice IT Field Support Specialist – Government

AT&T

Voice IT Field Support Specialist providing hands-on technical support for voice infrastructure and telephony modernization at AT&T. Collaborating with technical teams, ensuring mission-ready voice services for customers at customer-site environments.

Posted 6/14/2026full-timeColumbia • Maryland • 🇺🇸 United StatesSeniorLead💰 $72,000 - $101,600 per yearWebsite

Tech Stack

Tools & technologies

VoIP

About the role

Key responsibilities & impact

Support RIS I regional IT service delivery with a focus on voice infrastructure, telephony modernization, and end-user communications support.
Provide hands-on field and technical support for legacy telephone environments, VoIP and unified communications migrations, site surveys, cutover planning, testing, documentation, and transition-to-operations activities.
Ensure secure, reliable, and mission-ready voice services for customers by coordinating with technical teams, validating requirements, resolving implementation issues, and supporting successful modernization outcomes in a customer-site environment.
Assess legacy TDM telephone environments, including devices, circuits, analog lines, cabling, power, rack space, user counts, and supporting infrastructure.
Document current-state voice architecture and identify migration requirements, technical dependencies, transition risks, and implementation timelines.
Develop modernization and migration plans for transitioning users and devices from legacy TDM platforms to VoIP and unified communications solutions.
Coordinate number porting, device replacement, dial plan validation, phased deployment activities, provisioning, feature setup, and service activation.
Validate network readiness for VoIP implementation, including power requirements, gateway and switch compatibility, and integration with enterprise communications environments.
Manage installation, configuration, activation, and testing of VoIP telephone devices and related services.
Develop and execute cutover plans, including pre- and post-implementation testing of call routing, voicemail, emergency calling, user functionality, and service continuity.
Coordinate with telephone central office personnel, technical teams, and customer stakeholders to resolve implementation issues and minimize operational disruption.
Prepare implementation documentation, update inventories and diagrams, and support transition-to-operations activities.
Provide user communications, training, and post-implementation support, and coordinate decommissioning of retired TDM devices and services once VoIP operations are stable and accepted.

Requirements

What you’ll need

High school diploma or GED required.
Minimum of 8 years of relevant IT experience.
Must possess 8570 Certification; Security+ certification is highly preferred.
Excellent analytical and problem-solving skills with the ability to manage complex technical issues independently.
Outstanding verbal and written communication skills to effectively collaborate with team members and support end-users.
Strong organizational skills, with the ability to manage time and priorities efficiently and work with minimal supervision.
In order to be considered for this position, you must have a valid driver’s license and an acceptable driving record and be eligible to drive an AT&T company vehicle.
Ability to lift and move items weighing up to 50 lbs. as required.
Availability to work an 8-hour shift scheduled between the hours of 6:00 AM and 6:00 PM, as determined by management.

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T wireline phone

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

VoIPunified communicationstelephony modernizationlegacy telephone environmentscutover planningnetwork readiness validationinstallationconfigurationtestingmigration planning

Soft Skills

analytical skillsproblem-solving skillsverbal communicationwritten communicationorganizational skillstime managementindependent workcollaborationcustomer supporttraining

Certifications

8570 CertificationSecurity+ certification