CUCM Administration & Architecture
Enterprise telephony specialist with hands-on experience designing, deploying, and managing Cisco Unified Communications Manager systems.
Let's CollaborateEnterprise Architecture
Multi-site CUCM clusters designed for high availability and scale. From greenfield deployments to complex multi-tenant environments, every design starts with reliability.
Multi-Site Design
Architecting distributed CUCM clusters across geographies with centralised or distributed call processing.
High Availability
Redundancy planning with publisher/subscriber models and SRST fallback for uninterrupted service.
1000+ User Deployments
Capacity planning, CAC bandwidth management, and resource scaling for large enterprise environments.
Device Lifecycle Management
From initial provisioning through firmware management to graceful retirement — streamlined device operations at scale.
Mass Provisioning
BAT imports, auto-registration policies, and self-provisioning IVR for rapid device onboarding.
Firmware Orchestration
Staged firmware rollouts with device pools and controlled upgrade windows to minimise disruption.
Zero-Downtime Migrations
Seamless device moves between clusters and sites without impacting end-user experience.
Advanced Call Routing
Complex dial plan engineering, TEHO implementation, and global routing strategies that keep calls flowing efficiently.
Complex Dial Plans
Multi-layer route patterns, translation patterns, and calling search spaces for precise call control.
Global Routing
International dialling plans, E.164 normalisation, and toll-bypass strategies across regions.
TEHO Implementation
Tail-End Hop-Off routing for cost optimisation across distributed WAN topologies.
SIP & Integration
Carrier SIP trunk integration, codec optimisation, and cross-platform protocol troubleshooting for seamless interoperability.
Carrier Integration
SIP trunk provisioning, SBC configuration, and PSTN failover design with multiple carriers.
Codec Optimisation
Region-based codec negotiation, transcoding resource management, and bandwidth-aware media handling.
Protocol Troubleshooting
SIP trace analysis, SRTP/TLS debugging, and interop testing across multi-vendor environments.
What I Can Help With
System Architecture & Design
Transform your communications infrastructure with expertly designed CUCM clusters. Whether you're planning a new deployment or re-architecting an existing one, I focus on scalability, resilience, and clean design.
Migration & Optimisation
Seamlessly migrate from legacy systems or optimise existing CUCM deployments. Zero-downtime cutovers, performance tuning, and integration with modern platforms.
Security & Compliance
Implement robust security measures and ensure compliance with industry standards. From encrypted media to LDAP integration and audit-ready configurations.
"Ready to solve your most complex CUCM challenges — from enterprise-scale deployments to intricate call routing scenarios."
Ready to Collaborate?
Whether you need architecture consulting, migration assistance, or troubleshooting expertise — I'm here to help.