L4 UC Engineer

Role: L4 UC Engineer Exp: 10+ Years Location: RemoteJD:UC Architecture & Design: Deep understanding of Unified Communications Products like CUCM, CUC, IM & Presence, and Expressways. Deep knowledge of designing and troubleshooting clusters, inter-cluster trunks, and high availability configurations. PSTN Trunking & Interoperability: Designing and troubleshooting SIP trunks, PRIs with carriers, including codec negotiation, SIP headers, PRIs, and call routing logic. CUBE & Voice Gateway Configurations: Advanced IOS gateway setup (MGCP, H.323, SIP), dial peers, DSP resources, and survivability strategies. Analog Devices: Understanding of Analog Devices such as Analog Gateways, Analog Phones, Fax Devices, DTMF & Dial-tone behavior, FXS/FXO Ports. Call Flow Engineering: End-to-end call flow design across multiple platforms (CUCM, Unity, UCCX/UCCE, Expressway). Virtualization & Cloud Migration: Deploying IPT solutions on UCS platforms or migrating to cloud-based collaboration (Webex Calling, Cisco HCS).Strategic & Operational Skills Capacity Planning & Scalability: Forecasting growth, designing scalable dial plans, and managing bandwidth across WAN links. Disaster Recovery & Redundancy: Architecting failover strategies, backup systems, and DR testing protocols. Integration Expertise: Connecting IPT with third-party systems (CRM, ERP, SIP endpoints, SBCs). Change Control & Governance: Leading change advisory boards, documenting impact assessments, and enforcing configuration standards.

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