Per-phone voicemail boxes in VICIdial explained

There is a detail that trips up a lot of people building their first VICIdial system: you do not have to create voicemail boxes for your phones. They already exist. Every Phones entry on the system comes with its own voicemail box, created automatically when the phone is added. The voicemail admin screen you may have been hunting through is for something else — extra, general boxes you add by hand.

Understanding which kind of box you are dealing with saves a lot of confusion, because the two behave the same once they exist but are born very differently. The phone boxes appear on their own and are easy to miss; the general boxes are the only ones you ever create by hand, so the admin screen can feel emptier than you expect on a fresh system.

The two kinds of box

A per-phone box is tied to one Hardphone (deskphone) or Softphone. It is the personal mailbox for whoever sits at that Extension — direct calls to that phone that go unanswered land here. You never add it; it rides along with the phone record.

A general box is one you create from the voicemail admin screen for a shared purpose — most often a message drop fed by a DID (direct inward dialing) or a Call menu. It is not attached to any single phone, which is exactly why it is useful as a team or department box. Because no phone owns it, it does not vanish when you retire a handset, and it can be checked by anyone who knows its ID and password rather than only the person at one desk.

flowchart TD
  A["Voicemail box"] --> B{"How was it created?"}
  B -->|With a phone| C["Per-phone box"]
  B -->|Added by hand| D["General box"]
  C --> E["Personal mailbox for one extension"]
  D --> F["Shared drop for a DID or menu"]
  E --> G["Same dial-in + menu"]
  F --> G

Why the ID rule matters

Because every phone already owns a box, the system enforces a hard rule when you add a general one: its voicemail ID cannot duplicate an existing box or the voicemail ID of any phone on the system. That is not an arbitrary restriction — it is what keeps two boxes from fighting over the same mailbox number on disk. The ID also has to be all digits with no spaces or punctuation. The voicemail ID and password rules cover the full set of constraints.

What they share

Once created, both kinds behave identically. They both:

• Track new and old message counts read live from the Asterisk server.
• Accept the same dial-in check flow with an ID and password.
• Can email messages out and be shown on the admin summary screen.
• Refuse messages entirely if the active flag is off.

So the practical takeaway is this: do not waste time creating boxes for phones that already have them. Reach for a general box only when you need a shared destination — a DID (direct inward dialing) line, an after-hours menu, or a department mailbox. The mechanics of building one are in using a voicemail box as a message drop, and the full audio picture is in the audio prompts and voicemail guide.

All of this assumes the phones, extensions, and voicemail are already provisioned and talking to Asterisk. If you would rather skip that build entirely, you can have a working VICIdial server — phones and boxes included — in under 40 seconds — see pricing.