Voice Engineer - Teams Calling & Direct Routing Expert

Tata Consultancy Services; Gahanna (OH); On-site; USD 105,000 - 115,000; Full time

Benefits offered by this job

Discretionary Annual Incentive

Comprehensive Medical Coverage

Family Support: Parental Leaves

401K Plan

Certification & Training Reimbursement

Vacation & Holidays

Job summary

Tata Consultancy Services seeks a Senior Telephony Engineer to lead complex voice/VoIP migrations to Teams and Direct Routing. You will manage large Cisco UC environments, configure Teams calling policies, and coordinate across networks and carriers.

Responsibilities include migrating analog lines, configuring SBCs, and ensuring E911 readiness while delivering L2/L3 support during pilot and mass migration phases.

Qualifications

• Experience with Voice/VoIP management tools and processes.
• Deep knowledge of Cisco Unified Call Manager operations.
• Hands-on with SBC technologies and direct routing setups.
• Proficient with call recording systems (Nice).
• Experience with E911 configurations and telecom routing.
• Familiarity with Cisco UCS and general networking fundamentals.
• Experience configuring Microsoft Teams Calling and policies.
• 3+ years managing large call manager telephony environments.
• Ability to configure Teams Phone System, calling plans, and numbers.

Responsibilities

• Configure and enable Teams Phone System, policies, calling plans, and number assignments.
• Work with SBCs (AudioCodes/Ribbon) for Direct Routing setup and testing.
• Perform user cutovers from Cisco to Teams in coordinated migration waves.
• Configure Teams call queues, auto attendants, voicemail, and routing policies.
• Migrate and validate analog and specialty lines (gateways/intercom/paging).
• Coordinate with carriers for number porting and PSTN transitions.
• Reconfigure or decommission Cisco voice gateways and SIP trunks postmigration.
• Update routing tables, dial peers, E911 configurations, and failover paths.
• Provide L2/L3 troubleshooting during pilot and mass migration phases.
• Identify issues in SBC routing, Teams policy conflicts, or device registration failures.
• Handle escalations related to call quality, dropped calls, and network dependencies.
• Create detailed SOPs, migration runbooks, rollback plans, and user guides.
• Support coexistence scenarios during phased migration.

Skills

Voice/VoIP management tools

Cisco Unified Call Manager

SBC technologies

Call recording systems

E911

Cisco UCS

General networking technologies

Microsoft Teams Calling

Large call manager telephony

Education

Bachelor of Computer Science

Tools

AudioCodes

Ribbon

Job description

Tata Consultancy Services seeks a Senior Telephony Engineer to lead complex voice/VoIP migrations to Teams and Direct Routing. You will manage large Cisco UC environments, configure Teams calling policies, and coordinate across networks and carriers.

Responsibilities include migrating analog lines, configuring SBCs, and ensuring E911 readiness while delivering L2/L3 support during pilot and mass migration phases.