L4 UC Engineer

Role : L4 UC Engineer

Exp : 10+ Years

Location : Remote

JD :

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.