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Cisco Unified Communications Engineer (L3)

Company

NTT Limited

Location

petaling jaya, selangor

Posted

June 20, 2026

Position Overview

Key Responsibilities

  • Design, deploy, configure, and maintain Polycom and Cisco Unified Communications systems, including CUCM, Cisco Contact Center, Cisco Webex, and Voice Recording.
  • Manage and support Cisco voice gateways, session border controllers (SBCs), and IP telephony endpoints (phones and video devices).
  • Implement and troubleshoot VoIP protocols such as SIP, H.323, MGCP, and SCCP.
  • Monitor UC system performance, perform capacity planning, and maintain high availability.
  • Perform software upgrades, patches, and backups of UC systems.
  • Provide L2/L3 support for UC incidents, escalations, and change management.
  • Integrate UC with other infrastructure components such as Active Directory, DNS, certificates, and network services.
  • Collaborate with network, security, and operations teams to ensure QoS, redundancy, and security of voice traffic.
  • Develop and maintain documentation, including dial plan...

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