The same lifecycle underlies every engagement — a single meeting-room upgrade and a multi-site BFSI migration both pass through it, just with different depth at each stage.
Discovery workshop to understand current-state and objectives.
Current-state assessment and gap analysis.
High-level and low-level design, dial-plan and routing matrix.
Bill of materials, security and firewall requirements, test plan.
Build to the documented, agreed design.
Migration plan and rollback plan, executed in a controlled window.
User acceptance support and hypercare monitoring.
As-built documentation, knowledge transfer, operational handover, support plan.
We'll scope which stages and deliverables actually apply before quoting anything.