Case Study: Delancey achieves seamless Microsoft Teams Calling migration and resilient cloud telephony with LoopUp

How a leading real estate investment firm migrated to Microsoft Teams and implemented Teams Calling across the business with LoopUp

Delancey, a UK real estate investment and advisory firm, was experiencing repeated outages with its on‑premises PBX and needed a cloud telephony solution to support remote work and improve reliability. The firm engaged LoopUp, first for a hosted Skype for Business service and later to implement Microsoft Teams Calling using Direct Routing and Microsoft’s Phone System.

LoopUp designed and executed the Teams migration in three weeks, connecting the Phone System to the PSTN over LoopUp’s global voice network, preserving existing numbers and provisioning call transfer, forwarding and voicemail. The rollout had no service interruptions, drove rapid, firm‑wide adoption for internal and client calls, and delivered stronger audio quality and resilience through LoopUp’s multi‑carrier setup (13 Tier 1 carriers, auto‑failover and real‑time redundancy), ensuring business continuity during the COVID‑19 remote‑working period.

Delancey

Andrew Summerfield

Director of IT Operations