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Call-In login vs system-calls-you login

Two ways to connect an agent's audio in VICIdial: dial in and authenticate, or have the system ring your registered phone. Here is when to use each.

VICIfast Support
··3 min read
Call-In login vs system-calls-you login

There are two ways an agent's voice gets connected to VICIdial at login, and they are nearly opposites. In the default model, the system calls you: when you log in, VICIdial rings the phone registered to you and that call is your audio path. In the Call-In model, you call the system: you dial a number first, your audio connects, and then you log in. Both end with the agent live on the dialer, but the direction of the first call is reversed, and that changes what you need to set up.

The default: the system calls you

In the standard setup, each Agent has their own phone record describing a specific Extension. The device, a Softphone or desk phone, registers to the server over SIP (Session Initiation Protocol). When the agent logs in on the web interface, Asterisk places a call out to that registered device and the agent answers. From then on, that open call carries every conversation of the shift. This is clean and direct, and it is what most floors run.

The cost is that every agent needs their own phone record and a device that can register and receive a call. If you are building those out, adding a new VICIdial phone walks through it.

The Call-In model: you call the system

Call-In removes the registered device from the picture. There is one shared phone record per server, usually with the login callin, and every dial-in agent uses it. The agent dials a number your administrator set up, the audio connects, and then the agent enters their own user ID and password to identify themselves. The shared phone carries the audio; the personal credentials carry the identity. Those credentials have to be digits only, since the agent types them on a keypad.

Seeing both flows side by side

sequenceDiagram
  participant A as Agent
  participant S as VICIdial System
  Note over A,S: Default system-calls-you
  A->>S: Log in on web interface
  S->>A: System rings registered phone
  A->>S: Answer to connect audio
  Note over A,S: Call-In dial-in
  A->>S: Dial the call-in number
  S->>A: Audio connects then prompt
  A->>S: Enter user ID and password

Which one should you use

Pick the default when your agents have real devices that can register and you want the simplest, most direct audio. It gives each agent a dedicated phone record, which is easier to report on per seat.

  • System-calls-you: one phone record per agent, each device registered, audio rings out on login.
  • Call-In: one shared record for the whole server, agents dial in and authenticate with numeric credentials.

Pick Call-In when agents are on plain phone lines, when registering a device per seat is impractical, or when you simply do not want to manage a phone record for every person. Home teams and quick onboarding lean toward Call-In for exactly these reasons. Neither is more correct than the other; they solve different problems. You can even run both on the same system, with most agents on registered phones and a Call-In path available for the ones who need it. For how all of these phone options relate, the VICIdial phones pillar guide is the place to start.

If you would rather not wire any of this up by hand, a managed VICIdial box comes with both login styles ready to go. See VICIfast pricing to get started.

About VICIfast LLC

VICIfast LLC operates a managed VICIdial hosting + BYOI service for outbound and inbound call centers. We run the dialers, the carriers, the recordings pipeline, and the compliance plumbing so operators don’t have to.

Citing this article

VICIfast Engineering. “Call-In login vs system-calls-you login”. VICIfast LLC, June 26, 2026. Retrieved from https://vicifast.com/blog/vicidial-call-in-vs-callback-login

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