The VICIfast branded webphone explained
A clear explanation of the browser-based softphone that ships with every VICIfast plan, and how it connects agents to calls.
Every VICIfast plan includes a branded Webphone: a softphone that runs inside the agent's browser. There is nothing for agents to download, and it connects straight to your own server.
That sounds simple, but it removes a step that trips up a lot of new VICIdial operators. This post explains what the webphone is, how it talks to your box, and why it does not need extra plumbing to work.
What a webphone actually is
A Softphone is a phone that lives in software instead of a desk handset. The VICIfast version runs in the same browser tab where the agent works, so the call audio and the dialer screen share one window. There is no second app to alt-tab to and no separate window to lose behind the dialer.
Under the hood it speaks SIP (Session Initiation Protocol), the same signaling protocol used by hardware phones and VoIP systems everywhere. The browser handles the audio with WebRTC, so the agent only needs a headset and a network connection to be ready for calls.
How it connects to your box
The webphone registers to your server over an encrypted WebSocket on port 8089, then VICIdial routes calls to it like any other extension. Because each box has a public IP, no extra NAT-traversal helper is needed to get audio flowing. The path from the browser to your server is direct, which keeps setup and troubleshooting simple.
sequenceDiagram
participant A as Agent browser
participant V as VICIdial / Asterisk
participant C as Carrier
A->>V: Register over wss (port 8089)
V-->>A: Registered
V->>C: Place call via SIP trunk
C-->>V: Call connected
V-->>A: Bridge audio (WebRTC)From there the call path is normal VICIdial behavior. Your Carrier sits on the far side of a SIP trunk, and the Asterisk core on your box bridges the audio to the agent's browser. The webphone is just the endpoint at the agent's end of that chain.
What agents need
- A modern browser, a headset, and their VICIdial login.
- No app store install, no desktop client, no per-agent configuration.
- The page loads from your Branded subdomain over HTTPS, so it looks like part of your system.
Why it ships on every plan
A dialer is not useful until agents can hear and be heard, so the webphone is part of the base build rather than an upsell or a separate license. Whether you run two agents or fifty, the phone is already there waiting when the server comes up. There is no add-on to buy and no second vendor to deal with for the part of the stack agents touch the most.
It also means one less thing can drift out of sync. Because the phone is provisioned with the server, its version always matches the dialer it talks to, so you never end up with an old client trying to register against a newer box.
For the wider set of features we add to stock VICIdial, see what VICIfast adds to VICIdial. If your main concern is the lack of any client install, read a VICIdial softphone with nothing to install.
Where VICIfast fits
The branded webphone removes the most fiddly part of onboarding agents: getting a working phone in front of them. It is included on every plan, so there is no separate softphone to license or maintain across machines. For a small team, that means a new hire can be live on their first morning. See what each plan includes on the pricing page.
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. “The VICIfast branded webphone explained”. VICIfast LLC, June 29, 2026. Retrieved from https://vicifast.com/blog/vicifast-branded-webphone
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