From thirty-seven numbers to two
A field report on consolidating a multi-region telephony estate without losing a single client conversation.
The starting position
The firm had grown by acquisition. Each acquired practice brought its own phone numbers, its own carrier, its own conference bridge, and, more often than not, its own opinion about how a client should be greeted. Thirty-seven distinct lines were live when we began. Nobody could produce an authoritative list.
What we did
The work split into three phases: a discovery sweep that traced every number to a present-day owner, a migration design that mapped legacy numbers onto two consolidated published lines with intelligent routing behind them, and a cutover plan that ported numbers in waves with port-out forwarding to prevent any client call from ringing into the void.
“Cutover risk was managed not by being clever, but by being patient — porting in waves and keeping the legacy line answerable for thirty days after.”
What we learned
The telephony bill was the smaller win. The larger win was that the firm could now answer the phone in a single, considered voice — and that every call, regardless of which legacy practice it originated from, landed in front of a person who could route it correctly inside thirty seconds.
- 37 lines consolidated to 2 published numbers.
- $48,000 in annual recurring telephony spend recovered.
- Zero dropped client conversations during cutover.
Drew leads Jonsen LLC — a Denver technology practice guiding law firms and growing businesses through AI, cybersecurity, and systems that compound over time.