> Markdown version of [/jobs/ext/1055219-voice-it-field-support-specialist-ht3-government](https://www.wearedevelopers.com/jobs/ext/1055219-voice-it-field-support-specialist-ht3-government). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Voice IT Field Support Specialist (HT3) (Government) - **Company:** AT&T Inc. - **Location:** Columbia, MD, United States - **Experience:** Expert - **Salary:** $72,000.0 - $101,600.0 - **Contract:** Permanent contract - **Skills:** VoIP, Information Technology - **Published:** June 13, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8974248/voice-it-field-support-specialist-ht3-government ## About the Role Minimum Education and Experience: * 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. Additional Requirements: * 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. ## Description AT&T is seeking a highly motivated and detail-oriented Voice IT Field Support Specialist: To support RIS I regional IT service delivery with a focus on voice infrastructure, telephony modernization, and end-user communications support. This role provides 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. The selected candidate will help 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. Required Clearance: TS/SCI with polygraph. 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