Job Summary

We are currently seeking a Tcom - Network Support Senior Specialist to join our team in Bangalore, Karnataka, India.

Responsibilities

- Advanced UC Administration Operations: Perform advanced call routing, numbering-plan optimization, and feature configuration (hunt groups, call queuing, call forwarding, call admission control); own complex incidents and problems escalated from L2, delivering RCA and permanent fixes; ensure compliance with UC redundancy, failover, and disaster-recovery strategies.
- Integration Interoperability: Support integrations with SBCs, gateways (CUBE), PSTN providers, and contact center solutions (UCCE); ensure compatibility across hybrid UC environments (on-premises plus cloud UC such as Webex or Teams voice, where applicable).
- Architecture Design Leadership: Design and implement Cisco UC solutions, including CUCM clusters, SRST sites, SIP trunking strategies, and dial plan configurations; produce HLD/LLD documentation for UC deployments and migrations.
- Security Compliance: Enforce UC security measures and participate in E911 configuration and regulatory compliance audits.
- Upgrades Migrations: Plan and execute version upgrades, product migrations (CUCM 12.x+), and infrastructure refresh projects.
- Governance Documentation: Define UC best practices, SOPs, and knowledge-transfer documentation for L1/L2 teams.
- Vendor Coordination:



Act as the primary liaison with Cisco TAC and carrier vendors for L3 escalations, service-request creation, and post-incident reviews.

Required Skills Experience
- Deep hands-on experience with Cisco Unified Communications Manager (CUCM), including design, deployment, and cluster management.
- Expertise administering Cisco Unity Connection (voicemail) and Cisco Emergency Responder (E911).
- Proven expertise in dial plan design (E.164 numbering, global route patterns, SIP normalization).
- Strong experience with SIP trunk management and SRST site-survivability configuration.
- Hands-on experience with CUBE (Cisco Unified Border Element) and voice gateway deployments (TDM, PRI, SIP).
- Solid knowledge of VoIP protocols: SIP, RTP, SRTP, MGCP, and H.323.
- Expertise in UC security best practices, including SRTP/TLS configuration and UC hardening.

Nice-to-Have Skills
- Experience automating UC provisioning (Python, PowerShell, Ansible) or using orchestration tools.
- Familiarity with UCCE (contact center) integrations.
- Knowledge of UC health-monitoring tools (Prime Collaboration, DNA Center, or equivalent).

Education Certifications
- BE/B.Tech, MCA, or equivalent degree in IT or Telecommunications.
- Cisco CCNP Collaboration required (or actively held) at this level; Cisco CCIE Collaboration (or written exam cleared) preferred; ITIL v4 Foundation an advantage.

📌 Tcom - Network Support Senior Specialist (Bengaluru)
🏢 NTT DATA Business Solutions
📍 Bengaluru