Pick internal short-dial extensions for a larger team.
Three or four-digit extensions, not two, you outgrow two. Reserve ranges per department so 'sales press 1' has no collisions.
Try this first
- 1Pick four digits (e.g. 1xxx sales, 2xxx support, 3xxx finance).
- 2Reserve special numbers: 9xx for system (voicemail checker, conference room).
- 3Avoid sticky numbers: do not give '101' to the director and '105' to the intern, hold ranges.
- 4Document in a spreadsheet or in the PBX itself, otherwise it gets lost.
When to bring us in
Existing PBX has a messy plan: a rework usually stalls on habit, do it at a new-PBX moment, not as a standalone migration.
See also
- Voys, BelXS or RoutIT, which cloud PBX fits?Three popular NL platforms, differences are admin UI, partner model and per-user price.
- Teams Phone: Calling Plan, Direct Routing or Operator Connect?Three ways to connect PSTN to Teams, cost and management differ a lot.
- 3CX: self-host on VPS or take 3CX cloud?Self-host saves licence, but you own SBC, backup and updates.
None of the above fits?
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